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{Solved} - DHCP active leases not being updated when dialing into network via RAS server

Q: {Solved} - DHCP active leases not being updated when dialing into network via RAS server

When logging onto the company network via a RAS server, the DHCP active leases is not being updated with the IP address assigned to me. This is the case both when the RAS server is configured to give an IP address from a fixed pool, or when configured to obtain IP address from DHCP. As a result, I'm experiencing problems if an existing lan device has an IP address assigned and the dialed in device grabs that address. Whats going on ?

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A: {Solved} - DHCP active leases not being updated when dialing into network via RAS server


There should be a clear distinction between the IP adresses available for the network, and those available for the Dial up users. Do not make them part of the same IP group.

The reason is that Dial-up IP addresses should have a lease time of a few hours, and the LAN lease time should be that of a few days. This is obviously not compatible, so they need to be seperate.

Hope this helps

Reuel Miller
Windows NT Moderator (yes, that does make me biased )

[email protected]

Every morning is the dawn of a new error...

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I'm running a simple network at home with a Linksys BEFSR41 router. I have two computers hooked up wired and a wireless router acting like an access point that I use for my laptop occasionally. Until this weekend I've been having no problems but I shut down the computers due to weather and now one of them is not able to communicate with any others on the network. The problem computer will get an address supplied to it by the router (DHCP server) but once it has it I cannot get any other connectivity. Of course this is hindering internet access on this computer. I can ping the loopback and assigned IP addresses w/o problems but when I ping the default gateway (router) and/or the other computer I get "Request timed out." I initially thought it was the NIC so I bought another one but still get the same issue. I've moved the cards to different PCI slots but no luck. I tested the cable running from the computer and the router but found no problems. I even tried resetting the TCP/IP stack but still didn't work. The computer in question is running WinXP SP2 with the original NIC being a Linksys LNE100TX and the new one being a D-Link DFE-530TX+.

Any clues on this? If more info is needed let me know--it's been a while since I've posted. Thanks in advance.

A:Solved: Getting IP addr from DHCP but cannot ping DHCP server

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My WinXP Home PC won't connect properly (limited connectivity/no internet) via ethernet cable to my router (Belkin N150).

Ipconfig /all shows the IP address as but this is determined by an entry in the registry at HLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{39A...} > 'DhcpIPAddress' - REG_SZ - Also listed at 'IPAutoconfigurationAddress'. My laptop connects fine plugged into the same port getting it's IP automatically ( and getting internet fine.

After much searching I can't figure out what's wrong.

I've tried adding a DWORD entry 'IPAutoconfigurationEnabled' = 0, also tried deleting the 2 values.
Tried setting the IP manually to - limited connectivity goes away but I get no internet connection from the router nor file sharing.

Any help please?

A:Solved: DHCP IP by registry not by DHCP server??

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The Server went down - it is at shop for repairs. Meanwhile everyone can acecss internet fine - router is the DHCP and DNS server. However today one computer on the network is getting an APIPA address and can't ping the default gateway or any other computers on the network. Loopback ping works and device manager indicates network card is working correctly. Checked cables. Uninstalled and reinstalled network card. Rebooted several time. Anyone have any idea what to try next? All other computers on the network are accessing the internet just fine.

A:one computer on network can't get to DHCP server

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Hello Everyone,

We our setting up a Training Company to assist unemployed IT people in the Silicon Valley area of California. Our group is very small and having a hard time even getting our network here started. Here is the problem: We have Windows 2003 Server Enterprise 180-day usage disc (from a book we bought to learn). We have 5 static IP addresses leased from DSL carrier. They are for example: thru with a gateway of [these are only IP numbers used for example to prevent hacking] my subnet mask is We tried and tried for 2 weeks now and still can not get the complete network to work. We need: Step1.) The server to be secure with a firewall (but willing to forgo that and add later) Step2.) the server to issue Ip addresses from a pool of thru 12 to 3 workstations running XP(we decided to make the server, subnet mask is and gateway Step3.) Have access to the internet on all workstations and the server too. All we have succeeded to do is get the dhcp to issue out addressses to the workstations and even that i think we got lucky. We think the problem is somewhere you need to tell the (maybe iprouting?) setup that the Public ip address is the and gateway, subnet info and to route to the server PRIVATE ip address
Thank you for any help. We are on very limited funds here and appreciate any help. My number is 925-984-9907 if you wish to call. We wil... Read more

A:DHCP Server using (1) Network card

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I am running windows xp on a dell inspiron 4150 with a built in wireless card. My wireless was working fine until windows prompted me to reboot due to windows update. It stopped working after that. It is telling me that no ip address can be found and when I ipconfiged it with renew and all it still could not find it. It gave me an error message that says cannot connect to DHCP server.
Any help will be appreciated.
Thank you,

A:Network could not connect to DHCP server

Nothing really comes to mind, but if you're using Window's Wireless Zero Configuration maybe you need to reconfigure your wireless connection; especially if your network is protected with encryption.

I use the utilities from my wireless cards' manufacturers to connect to my WPA protectecd network and had no trouble today after the same reboot (two notebooks). Well, same reboot if you're talking about the critical update released yesterday.

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here is what happen, I am using internet and tv from the service provider, so they send me a new router which handle internet traffic and TV traffic, but since it already doing so much the technician told me not to enable the wireless function, else it might crash often.

so I have two router now,
router A handles TV and Internet (PS3 and A labtop)
router B handles wired and wireless internet ( I have it MAC enable, so ppl won't be able to access my wireless network from outside)

how should I setup so PS3 can access movies from computers behind router B ?

EDIT: I tried to make them within the same subnet

router A : (DHCP 65-99)
router B : (DHCP 100-120)

when I connect router A with B by connect ethernet cable by LAN, Router A is able to ping a computer behind router A, but the computer can't ping router A.

and computers behind router B has no access to internet, but is able to log into the router B setup page.

A:Need help to link two router within one network, and two dhcp server?

Please use edit rather than create another post.

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my network card cant obtain IP from my DHCP server after I installed windows xp and loaded the drivers what i got was limited or no connectivity

thank you

A:my network card cant obtain IP from my DHCP server

Hello kwachaa and welcome to TSF...
Try to Repair Connection...
Double-click on Local Area Network and go to support tab and hit 'Repair' button...
Make sure you set to get Automatic Address automatically...
Hope this will help you mate...

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Hi folks,

As I've said in the title, I'm looking to make a network with two routers but only having DHCP enabled on the secondary router.

Before I go any further I must ask: I have an Arris GT840A (sigh) as the primary ISP required modem. I'm currently connecting via wifi and sometimes have pings to the router coming back in the 1 - 20ms range for extended periods and it's decent. Other times I get a huge range of different ping times, often in the 300ms - 6,000ms range and sometimes even dropped.

Is disabling the DHCP server on the modem and relegating all local networking duties to my WRT54GV2 likely to alleviate this problem, or does this simply boil down to I'm screwed because I have to use this Arris modem?

Moving on with the primary question, here is my current setup:

Router 1: Arris GT840A
WAN IP: Dynamic / ISP assigned
DHCP: Enabled - 50

Router 2: WRT54GV2 (Connected to router 1 via WAN port)
DHCP: Enabled - 50

With my current setup I have been able to ping both router 1 and 2 via wifi, but I have not been able to ping or connect to the internet at large. I have read a couple of different how-to's and other forum answers and feel like this is how I'm supposed to be setting it up, but it's still not working. Something that concerns me about this attempted setup is that it still is using DHCP from the Arris modem / router, and I'm r... Read more

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Hello. I just moved to Auckland, NZ from the USA to go to school at the university here, and am having a problem connecting to the internet in the university residence hall in which I am living.
Wifi is not available in the residence halls, so we need to use an Ethernet cable. When I plug in my computer, the network adapter icon says “Identifying...” for a while then settles on “Unidentified Network” with no internet access, the IP is 169.x.x.x
When I try to release and renew the IP, it says “unable to contact your DHCP server, request has timed out"
I've tried multiple Ethernet cables, both brand new.
I tried connecting to a port in a friend's room in the same building, and even in a classroom on campus, and both had the same result.
Naturally after all that I assumed my NIC somehow died overnight while I traveled here, so I went to a computer repair shop expecting to have some hardware replaced, but we plugged it in there and it worked immediately so they weren't sure what to tell me.
I've gone through pages of old threads at this forum and others like it, trying solutions but having no luck.
I've power cycled my computer, obviously I can't power cycle the whole network as it's for 200 people, but the IT people here have tried resetting it for me on their end as best they can.
No network bridges
I've reset tcp/ip stack and winsock
It's not a static ip, set to obtain ip and dns automatically
No fire... Read more

A:Unidentified Network, Unable to contact your DHCP server

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Hi There Everyone at TechGuy! I am desperate for some HELP...Please?..........PRETTY PLEEEAAASSEE ???
Now,..Before i Continue Please First Be Sure to Read Fully as I did Some Google Searching & Tried Some Forum Fix It Options that I Found, which havent worked at all but I will leave you all info as well as some screen shots.
Second...Please know that I am not Very Computer Savvy or Knowledgable. Well,....a Little for a Home User but with the Operating System, NOT with this problem & networking, routers, modems, IP addresses & DHCP !! Networking is DEFINITELY NOT my area of expertise So Please Handle with Care. lol. THANKS & HUGS in Advanced!

The Problem.
We have a Desktop computer as well as a Lap Top,..both Running WINDOWS XP. The Lap Top is Wireless with a LINKSYS Wireless Card & the Desktop has the MOTOROLA Modem & a LINKSYS Router & we are BROADBAND Connected.
Both were Running & Working just fine & they were Both Accessing the Internet just fine...until 3 days ago when the Man in the house had to turn off the house power to find & replace a circuit breaker for the fritzing out Microwave & we turned off both computers before he did this. When the power was put back on, the Desktop Computer was back to its normal fine self & running perfectly. The Wireless Lap Top on the other hand was not.
The Wireless Laptop Popped Up with a Yellow Explaination Mark over the Double Computer Icon in the Bottom Right Task Bar...Near the ... Read more

A:Unable to Contact DHCP Server~Limited or No Connectivity~Cannot Assign Network Addres

if you connect the laptop to the router with a cable - does it work ?
you will need to copy between a working PC and laptop

would you post an image of device manager - see below
would you download xirrus and posr image see below
also post an ipconfig /all and if you could post into a reply - rather than a picture -
that the Wireless Card was never installed right to begin withClick to expand...

I'm interested in the ethernet connection that has wireless as a name - does the laptop have a built in wirelsss or do you use an adapter
{Device Manager}
Post back the results in device manager
Start > control Panel {Vista set to classic view}> system > {Vista, device manager on left hand side} {XP hardware Tab, device manager button} >
windows 7
start > control panel> System and Security> Device Manager

network adaptors, click on the + > post back the devices listed there
are there any ! ? or X
post a screen shot of the device manager - network adapters

To post a screen shot of the active window, hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
To upload it to the forum, open the full reply window and use the Manage Attachments button to upload it here
-----------... Read more

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I need the IP address ,DNS and gateway address so on .Is it possibile to get it from the modems DHCP or do I need the ISP DHCP working?

I'm setting up are home network and getting connected to the internet but the internet connection is down .But is it possibile that I can get this from the modem. .

Like how does the computer talk to the modem and the modem talk to the DHCP server .I never had this problem before.

A:Can you get DHCP info from the modem software even when the DHCP server is down

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I'm looking for a DHCP server similar to that installed on routers, to run on my computer. I need to manage and assign ip addresses automatically to my home network

A:Solved: DHCP Server

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Is it better to use Win2000 Server DHCP or DHCP from my Netgear wireless router?

I am currently in the process of setting up a Win2000 server on my home network which consists of four other 2000/XP machines.
The server is going to be configured as a domain controller and will utilize the Active Directory.

Should I use the Win2000 Server DHCP or stick with my wireless router as the DHCP server? What are the advantages/disadvantages to both and which would be easier to maintain.

Is a 550mhz PIII with 256MB RAM fast enough to make a good home server running Win2000 server?

The server is going to have (2) 120GB Western Digital 7200rpm drives with 8MB cache for storage and a single 60GB Western Digital 7200rpm drive for the OS and few other applications.

The server's primary function is to serve as a media server with an approaching 10GB of MP3 and music video files which is continually going to grow. Disk contention is at a minimum since there are only four PC's on the network. There will also be a lot of digital photos stored on the server and will also serve as a place to perform backups from the other four networked PC's.

A:Win2000 Server DHCP or Router DHCP?

We have a similar setup in our office using Small Business Server, a public IP coming into our router with DHCP turned on, connected to a NIC in the internal DHCP server (which is also running ISA). A second NIC in the server bridges to the internal hub to provide DHCP services to the clients. This way we control port filtering in 2 places and with 2 levels of NAT taking place we feel secure. It may be overkill but we're concerned that EVERYONE is trying to hack into ISA and DHCP servers connected directly to public IP that this setup provides an added level of security.

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Hey i got similar problem.I have dell inspiron 1501 (Vista32) and routher Linksys WRt54G.
I keep getting "local only" and "limited conectivity".I realized that the problem is in my pc because the other pc's connect to the access point without problems.I tested the following:

plugged directly to the modem=no success
plugged to the wireless routher=no success

When i looked into the info from ipconfig command i get this ip:
autconfigured ipv4

Due to that i entered ip manually something like: and default getaway
then tried with disabled ipv6
Still nothing.Then tried netsh int test reset ip and netsh winsock reset catalog without success!
The i upgraded my wireless card drivers and routher firmware just in case,reseted the routher to factory defaults and still nothing! I really dont know what could be the reason for that.Since i bought the laptop 1,6 year ago didnt had any problems.
I think everything started after i uninstaled Norton Internet Security and using Norton cleaning utility! I instaled Eset smart security and i started to get blue screen of dead! I wasnt able to log on to windows.After uninstalation i was unable to connect to internet.

Please Help

A:Solved: Unable to contact DHCP server

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I need help connecting to the internet. I am running on a wireless router.
I have tried ipconfig release, renew, and winsock
I've also tried auto obtaining ip and dns
Everytime i try to connect to the network it stops at renewing ip address and usually the default gateway is blank.

i ran cmd and typed in ipconfig /all and this is what i get

Windows IP Configuration
Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Autoconfiguration IP Address. . . :
Subnet Mask . . . . . . . . . . . :
Default Gateway . . . . . . . . . :

C:\Documents and Settings\Beee>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Bee
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Realtek RTL8102E Family PCI-E Fast E
thernet NIC
Physical Address. . . . . . . . . : 00-40-45-34-95-9C

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR2427 Wireless Network Adap
Physical Address. . . . . . . . . : 00-25-D3-32-1D-2C
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoc... Read more

A:Solved: HELP PLEASE T_T Unable to contact dhcp server

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When connecting to my local LAN network router I get the message " This connection has limited or no connectivity." The Local Area Connection Status,Support, details page displays;
Physical Address = 00-1A-70-15-6C-7B
IP Address =
Subnet Mask =
Default Gateway, DNS Server and WINS Server are blank.
At the command prompt I run ipconfig/all : The Adapter Autoconfiguration IP Address is
At the command prompt I run ipconfig/renew: After the request times out the following message is displayed: "An error occurred while renewing interface local area connection: unable to contact your DHCP server. Request has timed out"
The 2nd Computer on the network ( a Toshiba M55-S135 notebook) connects with no problem. The info on The Local Area Connection Status Support page displays:
Address Type Assigned by DHCP
IP Address
Subnet Mask
Default Gateway
The Details page displays:
Physical Address = 00-0F-B0-8E-14-07
IP Address =
Subnet Mask =
Default Gateway=
DHCP Server=
Lease Obtained=9/7/2008 6:24:40 PM
Lease Expires=9/8/2008 6:24:40 PM
DNS Server=
WINS Server= blank
Suspecting a bad LAN chip ( a Realtek RTL8169 Ethernet NIC) I disabled the Realtek in the Device Manager. I then installed a Linksys LNE100TX Fast Ethernet Adapter.
The results however are the same, the computer does not get any info from the DHCP server.
I can hookup... Read more

A:Solved: Unable to contact the DHCP server

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Hi all, sorry if this is in the wrong section but it was the closest one I can find.

I am setting up a Windows Server 2008 R2 server onto a network. The network has an ADSL modem router. I think I am setting up something incorrectly as I cannot get internet on my computers when the DHCP is enabled on the computer and not on the router.

My settings are as follows.

Server PC: (I set these myself manually)

IP Address:
Subnet Mask:
Default Gateway:

DNS Server:


IP Address:
DHCP Server: Disabled
WAN DNS Address: *retrieve automatically from service provider*

DHCP settings in server manager:

IP Range: -->
Subnet Mask:
Default Gateway:
DNS Server:

I have not modified any DNS settings not entered any settings apart from the above.

I cannot for the life of me get the internet to work with these settings and I need to run a domain environment from this server so I need the DHCP and DNS to operate from the server.

If anyone is able to help me I will be eternally greatful.


A:[SOLVED] DHCP and DNS in Windows Server 2008

Looks like your Server's setup in a loop, pointing back at itself for DNS (and Default Gateway?); you need it to pickup from an outside DNS server - your ISP, OpenDNS or whatever.

Not sure what the gateway needs to be set for, I'd suspect it should point to the router's IP - but I know almost zero about setting up a server!

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about an hour ago my 3month old Dell XPS Studio decided that i had "limited connection" to my router (wired). I have no idea what vista means by limited connection but i was unable to go on the internet with that computer. However the other computers on my LAN were fine (also wired)

I've tried rebooting the modem, router, pc.
I've done ipconfig /release and /renew afterwards.
I've done a few other cmd commands which resets my IPv6 and IPv4

still nothing. help anyone? thanks.

EDIT: update, i've tried some more stuff and upon ipconfig /renew it says there was an error with Loopback Pseudo-Interface 1 : The file was not found.

A:Solved: Unable to contact DHCP server. HELP! :(

Well, let's do the official stack repair, since you didn't say exactly what you did.

TCP/IP stack repair options for use with Vista or Windows 7.

Start, All Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

In the command prompt window that opens, type type the following commands:

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log

Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log

Reboot the machine.

Next, if that doesn't do it, I'd suggest a run with SFC since it's saying a file isn't found.

Vista SFC Tutorial

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Dealing with a Motorola cable modem here - how can I find out if its a DHCP server also?

A:Solved: Could a cable modem be a DHCP server?

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I come to you again seeking help. We have a problem with our logon and startup to our Windows 7 Enterprise system. We have more than 3000 Windows Desktops situated in roughly 20+ buildings around
campus. Almost every computer on campus has the problem that I will be describing. I have spent over two months peering over etl files from Windows Performance Analyzer (A great product) and hundreds of thousands of event logs. I come to you today humbled
that I could not figure this out. The problem as simply put our logon times are extremely long. An average first time logon is roughly 2-10 minutes depending on the software installed. All computers are Windows 7, the oldest computers being 5 years old. Startup
times on various computers range from good (1-2 minutes) to very bad (5-60). Our second time logons range from 30 seconds to 4 minutes. We have a gigabit connection between each computer on the network. We have 5 domain controllers which also double as our
DNS servers.
My original posts on:
Technet: http://social.technet.microsoft.com/Forums/en/w7itproperf/thread/e8400dbe-e6b8-4b1d-8851-a03e7af32e6e
Reddit: http://www.reddit.com/r/sysadmin/comments/w5f38/network_logon_issues_with_group_policy_and/
I followed a lot of what you all told me to do from testing the domain controllers with dcdiag and also completing netlogon tests. I did group policy tests where I got rid of the group policy
and just did default policy and it only slightly fixed the prob... Read more

A:Major Network Logon Issues (8 Domain Controllers and 3.5 thousand workstations) DNS, Time Server, DHCP, and Group Policy Errors


I would like to suggest using Network Monitor to troubleshoot the issue.


Jeremy Wu
TechNet Community Support

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Hey everybody

We have DHCP setup on our server. Recently, however, when I go in to look at it, it says it is not started, or sometimes the DHCP server has deleted itself.

I'm not sure why it won't start, or even deletes itself. Any ideas on what is going on?

A:Solved: Windows Server 2003 - DHCP keeps messing up

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I have a Gateway pc running WinXP Home .I have a wireless-G 2.4 ghz 802.11g Linksys router with a linksys wireless usb adapter the usb adapter "sounds like" it is trying to connect but can't. I think it has something to do with the DHCP server(Router) In the tcp/ip setting is set for auto config.I an sending a text document off a floppy drive of the command prompt of IPCONFIG/ALL.Could you please tell me what I'm doing wrong.I am working on a p2p network with eight machines.On my other machine it says lease Aug 17 to 18Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Ron>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : gateway
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast Ethe
rnet NIC
Physical Address. . . . . . . . . : 00-30-BD-03-8A-40

Ethernet adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Compact Wireless-G USB Network Adapt
er with SpeedBooster
Physical Address. . . . . . . . . : 00-1D-7E-0B-C8-70

C:\Documents and Settings\Ron>

A:Solved: Wireless usb adapter can't find DHCP server

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To get straight to the point, I've got network connectivity but no internet connection. ipconfig /renew gives the message "An error occurred while renewing interface Local Area Connection : unable to contact your DHCP server. Request has timed out."

I'm volunteering at a library. I just replaced one of the old public computers with a new Dell running Windows 7. They're all on a wired connection, and the old ones work fine. The new one is the only one with a problem.

ipconfig /all on the problematic one gives
C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : internet5
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : B0-83-FE-55-70-2A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::e9d7:e939:aca:9c44%11(Preferred)
Autoconfiguration IPv4 Address. . :
Subnet Mask . . . . . . . . . . . :
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 246449150
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-F5-4D-39-B0-83-FE-55-70-2A

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0... Read more

A:Solved: Unable to contact DHCP server on new computer

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We are moving our DHCP from one Windows 2003 Server (standard) to a new machine. Both servers are domain controllers. AD is set up and working on both servers. Everything is set up. I exported the dhcp database from the old server to the new one. All messages were successful.

I unauthorized the DHCP server on the old server.

Now when I try to Authorize the new DHCP server, I get an Access Denied message. Everything I have read is indicating that the I have to be a member of the Enterprise Admins group in order to Authorize a DHCP server.

We didn't have this group initially and I'm thinking we didn't because we are only running Server 2003 Standard. I created the group, but I'm not sure if I did it right and added Administrator. It still isn't working. Can someone please help me?


A:Solved: DHCP Authorize Access Denied Server 2003

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I hope you guys can help me, sorry this is very long and clueless. I am not techy at all.

I have 2 PC's connected via ethernet cable to a router provided by my ISP (Orange Livebox). One PC has Windows XP (hubby's) and one has Windows 7 (mine).

Until about 2 weeks ago both PC's were working fine and no internet connection problems. We lost our connection one Friday night along with thousands of other people in our area. It was fixed on Saturday but ever since then my PC has been dropping it's internet connection but my husband's PC is working normally.

My internet connection drops and will only come back on if I unplug the router and leave it off for a minute then plug it back in. Connection then works for a few hours (usually up to 7 or 8 hours) before dropping again.

I get this error in the Event Viewer when it happens:

"Your computer was not assigned an address from the network (by the DHCP server) for the network card with network address xxlong number herexx. the following error occurred: 0x79. Your computer will continue to try and obtain an address on it's own from the network address (DHCP) server."

Have contacted the ISP "support" who sent a new Livebox and ethernet cables. I thought this had worked but lost the connection again the next day. Phoned them again and they say they will test the line and get back to me (they also said this last time). They are useless and I would change ISP but my husband is ... Read more

A:Solved: IP Address not Assigned by DHCP server. Eh? No Internet Connection...

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i opened a command prompt and did ipconfig/release then ipconfig/renew and this message came up: An error occurred while renewing interface Wireless Connection : unable to contact your DHCP server. Request has timed out.

I have:
windows 7
actiontec GT784WN modem with verizon dsl
using wpa/wpa2
acer az1620 computer with realtek pcie gbe family controller

I cannot connect wired or wireless. My other desktop connects fine wired and other laptop connects fine wireless.

here are results from ipconfig/all:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.


Windows IP Configuration

Host Name . . . . . . . . . . . . : Computer
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : C8-9C-DC-2E-53-79
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Ralink 802.11n Wireless LAN Card
Physical Address. . . . . . . . . : 74-DE-2B-12-18-3F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
... Read more

A:Solved: unable to contact your DHCP server. Request has timed out.

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Windows NT 4.0 Server SP3 (will be upgrading)
Diamond Supra 56K Modem (Internal)
Port: Com 1 (only one available)

I cannot dial out. I have everything set correctly in RAS; The com 1 port always comes on automatically, and the modem if fine (however, it doesn't pick it up when I have to install the drivers)

The error message:

"ERROR 692: Hardware Failure in Port or Attached Device.


A:{Advice Offered} - Dialing Out from NT Server 4.0

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My laptop is running Vista SP2. The machine will connect to my Belkin router with a wired connection but I have a problem setting up a wireless connection. The machine can successfully obtain an IP address from the DHCP server but it is unable to get a ping response from the gateway address or anything else on the LAN (and yes, other devices on the LAN can ping the gateway I have tried stopping the Base Filtering Engine, running 'netsh winsock reset' and applying the fix in http://support.microsoft.com/kb/928233 but none of these has resolved the problem.

In the 'Network and Sharing Center' window, the machine is shown as being connected to 'Unidentified network', but there is a red 'X' against the onward connection to the internet. Initially, I had the same problem with the wired connection but running 'netsh winsock reset' in the command window triggered it into creating a new network location the next time it connected and then it worked happily. Unfortunately, I have not been able to repeat this with the wireless connection.

The network adapter is an Atheros AR5007EG with driver version and the status show that is working properly. For information I have shown below the output from the command ipconfig /all:
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . .... Read more

A:Solved: Vista obtains address from DHCP server but cannot access internet

Welcome to TSG.
We have seen quite a few issues with that adapter.
Here is a summary of things to try:
Courtesy of ETAF and Terrynet on the Networking Forum:
Atheros AR5007EG & AR5007
We have recently been seeing a lot of problems with the above adapters over the last few months, mainly concerning WPA and WPA2 encryption and windows Vista.

The adapter gets an IP configuration, and shows as connected, but communication is non-existent or sporadic.

Log into the Router and disable the wireless security and see if you are now able to connect to the internet and surf OK.
--- Please post back here if that works or does not work.

Here are a number of possible solutions

--- 1) In Device Manager right click on the wireless adapter and "update driver." That apparently has worked for some posters.

--- 2) Download and install the latest wireless driver from your laptop manufacturer's web site support section, as some manufactures, appear to now have a working driver available.
Toshiba - update has worked for some PCs
HP The latest HP Atheros driver dated Sept 2010 has fixed the issue - so check the driver date, However, that does NOT apply to all HPs / Compaqs machines
- the poster did an online scan for driver updates on the HP website here HP Product Detection which resulted in a solution. Solved: Can't connect to internet wirelessly - Atheros AR5007 Wifi through Clear Comm - Te... Read more

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My computer locks up every time I try to dial into my internet server (Juno) after I have rebooted my computer. Then I have to turn it off (not good) and reboot. Usually I have to do this 2-5 times before I can eventually get through. I won't turn my computer off or install updates or anything else that requires me to reboot my computer. I have spent a large amount of money on Juno tech support to sombody in India and still have the same problem. Help?

A:Computer locks up when dialing into internet server

Have you scanned using an up-to-date AV? Do you have Adaware / Spybot or similar to scan for malware? If not you can get them (free) from here http://www.majorgeeks.com/downloads31.html

You are looking for "Adaware SE Personal " and "SpyBot Search and Destroy". Install - update - run and delete all that they find. Post back

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I hope someone may be able to tell me how to fix the problem I'm having with my modem. My modem makes a loud humming static noise while dialing to get on the internet or to talk with someone and then disconnects and ends the call immediately after dialing. Sometimes there is no static noise while dialing and then the loud humming starts immediately after dialing and the telephone call terminates after about 30 seconds. On one call, I heard someone talking from the other end of the phone line but couldn't understand what they were saying because of the loud static.
I have an IBM Aptiva computer, with a windows95 operating system and an IBM Aptiva 28.8 mwave Data Fax modem which is located right on the mother board. I bought the computer new about 5 years ago.
I'm not too familiar with technical terminology, although I have looked in every part of my computer. I looked at a lot of things under system, modem, network neighborhood, program manager and communications, but everything looks normal. IBM notified me that they don't stock this modem any longer. I'm at a complete loss of any new ideas on how to fix this problem exept to try a new modem which I'm a little hesitant to buy until I'm sure the one I have is bad. Any help I can get woud be appreciated. Thank you.

A:Modem makes loud static noise while dialing and then disconnects itself after dialing

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I'm running Remote Server Administration Tools (RSAT) on Windows 7 Professional 64-bit and I've noticed that when I run the DHCP Management tool (DHCPMGMT.MSC) and I add our DHCP Authorised server then close the console, it forgets the DHCP server and I
have to re-select it next time I use the console. 
On the other hand, the DNS console remembers that I've used a particular DNS server even after I close the console.
Wondering why the DHCP Management console is so forgetful?

A:DHCPMGMT.MSC in Remote Server Administration Tools (RSAT) won't remember DHCP server

This is by design.

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IP Network: Dhcp server works fine. (CISCO ROUTER)

Windows 200o servers, Windows 2000 clients (up to dated, sp4, rollup1 etc) IS6sp1

Some pc's with IP dhcp , works ok
Some pc's with fixed IP, works ok

After changing fixed IP on a client to dhcp-IP, the client can not find the DHCP server.
change back to fixed IP, PC works fine again.

DHP server and other DHCP clients still working fine

Local Area connection status: only outgoing packets, no incoming.

reboot, or ipconfig /renew no solutions

Does someone know this problem ?

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At title states. I'm baffled

Unable to create a connection with the windows 7/64 machine. I've tried both dhcp and static with no resolve. Disabled/Enabled the adapter. Restarted the machine a few times. Uninstalled/Reinstalled/Updated/deleted the nic drivers and also let windows install its drivers. Used alternate eth cables / ports on hub.... other machines and mac work fine.

Network adapter states "This device is working properly"... local area connection status states:
ipv4 connectivity: no network access
media state: enabled

ran diagnose under the nic context menu and "troubleshooting couldn't identify the problem"...

System was working fine two days ago before I left for the weekend... machine was turned off before I left and was still off when I returned. Also, windows updates are set to manual.

A:Solved: Unidentified Network (DHCP / Static)

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Hello, i was not exactly sure where i am supposed to post this question so if this isnt the right place i will delete this and repost where you tell me too, here is the problem.

I have a computer on a school network, i recently set up a WDS server to make rebuilding computers allot easier and faster. I created an image for a Inspiron Desktop 560ST but when i tried to redeploy the image back on the exact same computer while connecting to WDS deployment service i get this error.

<Installing windows>
WdsClient: An error Occured while obtaining an IP address from the DHCP server. Please check to ensure that there is an operational DHCP server on this network segment.

I do have a DHCP server and it is on.....

In the same screen i get the error i press shift+f10 to bring up CMD and type ipconfig and this is what i get

Windows IP Configuration

Ethernet adapter Local Area Connection:

Connection-Specific DNS Suffix . :
Link-Local IPv6 Address . . . . . . : fe80::70bb:e025:dd6c:cf84%2
Autoconfiguration IPv4 Address . .:
SubNet Mask . . . . . . .. . . . . . . .:
Default Gateway . . . . .. . . . . . .. :
_________________________... Read more

A:Solved: Can not connect to DHCP on a network computer

Networking would be the right section, I`ve moved the thread for you.

Does the card work while in Windows, maybe the network card is no good.

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I am setting up a linux box for a server on my home network which is DHCP, I don't want to change the entire network, I just need this server to have a static IP (so that I can get port forwarding to work). I don't even know if this is possible, if I were to give the server a static IP can my router deal with it, even though everything else is DHCP? My router is a linksys WRT54GS if that helps any.
An answer to this would be much appreciated. ^_^ Thanks

A:Solved: Is it possible to have one computer with Static IP on a DHCP Network?

Yes just make sure it sits outside of your DHCP scope so if DHCP starts at and has 100 seats then make the machine be or lower or and higher and it would be fine. Make sure to copy all other items from what DHCP would give you. E.G. DNS, Subnet mask and gateway.

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Didn't see a server specific forum. What is the best way to do the following? I have an entry in active directory for a server that is no longer in use. I need to add a new server and need to use the same name as the no longer used machine in AD. So do I delete/reset/remove/etc...?

A:Solved: Active Directory Server 2003

If the server is no longer in use then you can safely and happily delete, then add the new one.

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I have a problem with my pc randomly locking up and having to be rebooted. I believe it has to do with the wireless card accessing my network, but I can’t figure out how to troubleshoot it. (If this is the wrong forum, please let me know!)

I have a desktop, two laptops, and a printer on a wireless network. All of them have been working fine. Then, about a month ago, I loaded a new game on my desktop, which worked entirely fine for roughly three weeks. Then last week, I tried setting up a server in the game. On my first attempt, it locked up my pc at the setup server stage, and I had to reboot. On my second attempt, I tried a slightly different configuration, and it created a local server and worked just fine.

Everything seemed okay for a couple of days, and then the game started to lag after a few minutes of play. After two or three more rounds of play, the lag was then accompanied by the pc locking up. Couldn't figure out why, so I stopped playing it.

Within a day or two, my desktop would randomly freeze without warning, with no clear connection to any specific application or time of day. This has continued to today. Sometimes the lock up is preceded by erratic behavior, such as the wireless keyboard freezing up though the companion wireless mouse will work (or vice versa) and an occasional USB connecting-then-disconnecting sound, though nothing had been touched. Sometimes the lock up is for 10 seconds or so. Most of the time, though, there are no warnings, and it ... Read more

A:Solved: Lock ups due to DHCP / network card issue?

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Hello, I have been experiencing some problems on my home network. I have problems with AOL, FTP and steam online games like counterstrike, team fortress 2, and day of defeat. I get these problems about 3/4 of the time, and 1/4 these programs will work.

When I sign into AOL I get a message saying "Could not connect to authentication server:
Windows socket error #10060". On FTP about half of the time I am not able to connect, and I the connection keeps timing out. On the steam games, when I open up the game dialog, I don't get the auto-retry option that is normally available. I tested these problems on other computers at my house and the same behavior occurs.

A:Solved: Problems on a DHCP wireless home network

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Having trouble with my Windows 7 Ultimate (64-bit) wired LAN connection. Yesterday evening everything was fine, I was connected and doing some remote work into the office - I was playing with OpenVPN connections. I left the machine for a few hours logged on, came back and now the NIC appears dead.

I have restored windows to the point just before i installed Open VPN.

I get "Unidentified network" and "no internet connection" for my LAN connection in Network Centre. There's no gateway or ip assigned looking at ipconfig /all, just the self assigned 169.* ip

The ethernet cable is connected directly into my cable modem (note, not a router).

I have googled a lot and have tried (not necessarily in this order):

1. Ensured its not the WAN/RJ-45 cable - have connected successfully with an older laptop's LAN NIC. When switching machines i turn off both the machine and the modem for 30 secs, and typically tun network troubleshooter to reset the LAN.
2. Tested the internal NIC by pinging, loopback successful.
3. Uninstalled the LAN NIC and reinstalled it.
4. Removed all clients & protocols from the NIC's properties bar IPv4 and Microsoft Client for windows i.e. specifically removed IPv6.
5. Reset TCP/IP using netsh int ip reset c:\resetlog.txt.
6. Have removed the wireless adapter. The only network connection is the internal NIC.

All forums I've scoured suggest one or more of these things, so I'm exhasuted of ideas.

There&#... Read more

A:Solved: Ethernet card - No DHCP, unidentified network

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I have an active directory, a DHCP server, 3 VLANs, and 2 wireless Router/AP/Repeater. I was thinking, might be the first problem, that I would put in one as an AP and one as a Repeater. The signal is there and static IP on the device works, but that is, well, it does not work for what we need it to. I tried enabling DCHP on AP but it is assigning ips to our voip phones. Really messes them up with they use get connected that way instead of the DHCP server.

So I am not sure how to set this up where a device connects to the wireless, get assigned an IP from the DHCP server and works.

I have tried several different ways, but have not hit what works.


A:Need advice with DHCP, Wireless AP, and active directory.

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Hi everybody,
I have a strange networking problem with XP.
I have a peer to peer network and all is fine for about 10 mins,
then the XP workstation seems to disconnect itself and then to
reconnect it I have to use a network drive which then seems to reconnect the system after a long delay (about 40 seconds). I know 2K server has a lease time with DHCP clients etc, but I am using static IP address, does XP lease itself?.
Would be grateful for any help with this one.
Many thanks

A:XP networking and Leases?.

Two different type of leases.

Try typing in this from a command prompt,

net config server /autodisconnect:-1

This should disable the autodisconnect. You might need to do this on each station.

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I'm messing around with W2K Server at home and can't seem to get it connected through my cable modem to my ISP's DHCP server. I know the cable and connection are good because it works on my W2K Pro workstation. I've tried ipconfig /renew but that's when the error occurs that it can't find DHCP. I can successfully ping the loopback address. The NIC is set to use DHCP.

Since I'm just becoming familiar with Server I'm sure there's something I'm not configuring properly. Suggestions?


A:W2K Server can't find external to DHCP server

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here at work there is a machine running win2000 server. I want to enter accounts for each student. How would I set it up so they can't download programs or install files, and also so they can save files to the server. Sorry for the vaugeness. If there are good books or sites that have info on this it would be greatly appreciated.

A:[Solved] Setting up Windows 2000 Server(active directory)

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One of my client's Active Directory server (Windows 2003 Server) went down when we installed Service Pack 2. We were able to remove the service pack and get it running again, but until then the client was without any Internet connectivity, due to their DHCP running on the Windows AD. It was a six hour nightmare.

Can a Windows Active Directory do its job without running its own DHCP service? We would like to unload the DHCP from the Windows box to a Linux box or even to the WatchGuard router, but I am not sure how well the Windows server would take this hit to its functionality (or ego ).

Thanks for any insights into this issue.

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I just updated to the most recent bios.......when I boot-up, computer hangs with message "No Active partition".
I push enter and everything boots and runs normal.

I have verified the bios updated correctly....how can I fix this so it boots without having to push enter?

A:HP a1130n updated bios now get no active partition


go into disk management, see if any of the partitions are marked as "active", the C partition should be the active partition.

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