Over 1 million tech questions and answers.

auto dhcp ip lease to unknown device?

Q: auto dhcp ip lease to unknown device?

I've become the unofficial network admin at my work place, we are having some network connection issues and I have no idea what's causing it. This problem only started occuring about 3 weeks ago, there haven't been any changes made to the configuration of the network. The network has 1 linux server, 7 computers, and 2 network printers. The router we are using is a D-link DI-604, there are 2 d-link switches connected to it, as well as a d-link DWL-900AP+ wireless access point. Sometimes when we arrive in the morning and turn on the computers, some of the computers cannot acquire a network address. Loading the router configuration page shows the dhcp server leasing IP's to an unknown device, screen shot is attached.
The mac addresses of all known devices connected to the network (computers, printers, server) begin with 00, i don't know what the device with mac address beginning with 52 is but the dhcp server is leasing all the unused ip's to that device.
Anybody have any ideas?

Preferred Solution: auto dhcp ip lease to unknown device?

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link http://downloadreimage.com/download.php. (This link will automatically start a download of Reimage that you can save to your computer.)

A: auto dhcp ip lease to unknown device?

Read other 10 answers

Error screen:

We are getting this error prompt after windows 7 OS TS completion during first boot of the laptop .Also laptop not installed with NIC & bluetooth drivers.<o:p></o:p>
Issue is only in a single site laptops in which Imaging worked perfectly until last week.i have found only below errors in BDD.log and setupact.log<o:p></o:p>

i have gone through some solution in msforum link below which says to add sleep time in litetouch.wsf file but unfortunately i cannot test that script changesin my environment


Is issue really from DHCP or MDT 2013 bug ? if its MDT bug then the above sleep time update will really work .Seeking your help to understand and to isolate this issue better.<o:p></o:p>


Read other answers

  I have several windows 8.1 machines connected to a private network.  The clients all obtain their first DHCP leases correctly and work well for a time. At some point after having been running for awhile, they get into a state where they start
ignoring the DHCP ACK messages from the DHCP server when they attempt to renew their leases (see attached pcap file).  They go on ignoring the responses to their DHCP Requests until they lose their IP addresses and then send a DHCP Discover and receive
a DHCP Offer.  At this point, they seem to accept their new address and move on until it is time to renew again, at which point they start ignoring their DHCP ACKs again and the cycle continues.  These machines will work for hours with no problems
whatsoever, but they all seem to experience this issue at some point every day.  When they get into the state where they are ignoring their DHCP acks, they will stay that way until they are rebooted.  Disabling and then re-enabling the adapter does
not seem to fix the issue.
 Does anyone have any idea what could be going on?  I'm pretty stumped at this point.

Thank you,

Read other answers

Hi all, I have a problem with my laptop (Inspiron 1545 Windows Vista 32) that it disconnects briefly from the internet every 30 minutes. I believe I've tracked the problem to the DCHP Lease. It is only for one hour, so every 30 minutes (half of the lease time), it tries to refresh it so the lease doesn't expire. I have a Netgear WNR2000 router, but my wired PC's DHCP lease is 1 day, whereas my laptop's is 1 hour. Please let me know if you need any other information to help me extend my DCHP lease. Thanks!

A:DHCP Lease problem

Read other 8 answers

Having a very frustrating problem.

Heres the scoop i cant get a good IP address from my DHCP server. It's an at home network and Ive been able to get this network adapter to work before with x64 but not with this particular machine (Upgraded). First it take forever to aquire an address and sometimes it gives me "limited or no connectivity"

Here's ipconfig /all you'll see some issues.

Host Name computer
primar dns suffix.........(blank)
Node Type................Unknown (This cant be right)
IP Routing Enabled..........NO
WINS Proxy Enabled........NO
DNS Suffix Search List...........WorkGroup

Ethernet adapter wireless network connection:

Connection-specific DNS suffix .......WorkGroup
Description........Ralink RT2500 Wireless LAN Card
Physical Address...............00-12-17-8e-12-43
DHCP Enabled................Yes
Autoconfiguration Enabled......Yes
IP Address........
Subnet Mask...........
Default Gateway......
DNS Servers...........
Lease Obtained.....Wed, Jan 10 2007 10:36:05PM (heres the problem)
Lease Expires........Wed, Jan 10 2007 10:36:04PM (Got no clue whats wrong)

Im thinking it's an easy fix or a Critical system shatering malfunction. Im using other computers that get normal leases that are good for about 8 days and my access point shows my problem machine getting a good IP lease. I looked up the "Unknown" Node type issue and microsoft said something about registery keys for &... Read more

A:DHCP Lease Problems

Read other 7 answers

We are having a problem with our DHCP renewals. At 50% of the lease the comp tries to renew it's address and we get the following entries in the Event Viewer:

Event ID:1003
Your computer was not able to renew its address from the network [from the DHCP Server] for the Network Card with network address 00104B67D185. The following error occured:
The semaphore timeout period has expired. Your computer will continue to try and obtain an address on its own from the network address [DHCP] server.

Event ID: 1007
Your computer has automatically configured the IP address for the network Card with network address 00104B67D185. The IP address bing used is (default).

Event ID: 2505
The server could not bind to the transport \device\NetB T_Tcpip_ {BA16FD88-B75B-49E1-8F07-2CFD4F0FB2DC} because another computer on the network has the same name. The server could not start.

This last error terminates ftp and telnet connections.
Our DHCP server is NT4.0. The clients are W2K and NT4.0.
Appreciate your thoughts. Thanx.

A:dhcp lease renewal

Is the DHCP service actually running on the server? If so what lease duration is set on for the DHCP scope?

Renewing after 50% of the lease time is standard in Windows, and the way to extend the interval is by increasing the duration of the lease.

An IP address starting 169.x.x.x is what you get when the client times out after looking for a DHCP server that isn't responding to network requests. That's why I ask whether the DHCP server (or the service) has crashed. Even if the server itself hasn't gone down it would be worth stopping and re-starting the DHCP service.

the last error maybe caused if a computer either has the same NetBIOS name or IP address on the same netwrok segment. Check how your scope is configured, and that you have enough addresses for the number of clients accessing the server and requesting IPs.

Read other 1 answers

I have a machine which seems to fail to run GP update after it's DHCP lease has expired and renewed. The machine will display a black background on the desktop window. The machine is a laptop running Windows 7. The user informed me that she lost connectivity
and rebooted her machine. After login and the Desktop window was black. In our environment we have all machines perform Dot1x authentication using Windows native supplicant, Cisco switch as the authenticator, Cisco ISE as the authentication server. From the
authentication server and Cisco switch logs, the laptop was successfully authenticated and received a valid IP within the subnet that it should be in. Is this an issue with authentication, DHCP, DNS, or something else?

Read other answers

Hey guys,

Before I begin I just want to say that my computer knowledge is quite minimal so please forgive me. I know you are all busy so I will do my best not to waste your time. I have read every forum I could find on these topics and tried most solutions I could work out (see list below)

Basic problem: lost internet connectivity 2 days ago. I was using the internet fine and then when I came back a little while later it would no longer work.

- computer: old Asus F3E series intel centrino
- Windows Vista
- router/modem: unfortunately I am travelling and staying in Paris at the moment so my internet was essentially an open wifi network which to connect usually you go to the wifi network, connect to the specific one and then when you open the browser it takes you to the landing page where you type in log in and password. These were provided to me by the landlord so it's not my account and I have no idea where the router/modem is unfortunately.

After much reading of forums and attempting of solutions, I went to event viewer in admin, which confirmed my suspicion it was a DHCP problem. The event viewer on the day the internet stopped working said "Your computer was not able to renew its address from the network (from the DHCP server) for the Network Card with network address 0011xxxxx. The following occurred: The semaphore timeout period has expired. Your computer will try and obtain an address on its own from the network (DHCP server." Also ... Read more

A:DHCP connection/ IP lease problems, please help!

Read other 16 answers

Ok, I've read the rules, had a quick search for some of my keywords and seems well for me to post.
I have just installed a new graphics card, soon thereafter I started getting problems with art programs and if I opened several pictures at once across any browser (I think, although I was mainly using firefox). Of course recapping what I had done I realised that I had not uninstalled the old card, long story short I uninstalled it, got the new one reinstalled and the browser problems stopped, or so I thought.
I quickly noticed that the Art programs still didnt work, and (although less frequently) the browsers still expierence some problems.
The Error symptoms are: Computer freezes, no access to anything, Mouse doesnt move and After afew clicks the computer will beep at me, On the art programs about 2/3rds of the image will Flash, or turn black entirely about every 4 seconds.
Annnnd the error log says:

"The ip address lease "ip" for the network Card with network address "network address" has been&#x000d;&#000a;denied by the Dhcp server "similar ip" (the DHCP server sent a DHCPNACK message),&#x000d;&#x000a;"
So, I think thats about where I stand. Soon after this I realised that every time this happened I was in fact online. (should have noticed earlier).
Im on a dynamic ip and using a linksys router (aren't I the fool), and thats about everything I think I can give you information wise. If anyone can h... Read more

A:Dhcp Ip Address Lease Denied?

This is strange, what kind of card did you pull?


what kind did you add?

the more details the better

Read other 5 answers


I need to do a net use when an IP is assigned via DHCP. The only way that I can find to do this is to schedule a task based on a logged event. To do this I need to specify
the log (I picked "Microsoft Windows DHCP Events/Admin")
the source (I picked Dhcp-Client)
the event ID (this is what I can't figure out)
I looked at the logs with the Event Viewer and found a bunch of dhcp-client log entries but none of them were "successful IP lease" or words to that effect.

I get tons of these: (50067) Dhcp has received network hint 146514C4F4E4 for the Network Card with the network address 0x4025C2636874

and, while meeeing with the router) a few of these: (1001) Your computer was not assigned an address from the network (by the DHCP Server) for the Network Card with network address 0x4025C2636875. The following error occurred: 0x79. Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.

but I never saw something indicating a successful lease and I know there was one or I couldn't be posting this question!

OR IS THERE A BETTER WAY to schedule a task when an IP is assigned?

A:What is event ID for dhcp-client IP lease? (Or ia there a better way?)

There is event id 50058 from DHCP that says Your computer was successfully assigned an address from the network... I have to say that I've never seen it in a log. Do you need to know when a new IP is assigned? Or simply when it gets TCP/IP connectivity?

Read other 4 answers

OS: Win98SE
Modem: RCA/Thomson DCM 315 (cable modem)
ISP: Comcast

Today, out of the blue, one computer can no longer access the internet. I have two computers connected to the same modem, a laptop via USB (the one with problems), and a desktop via RJ-45. The desktop connects to the internet just fine--in fact, I'm using it to ask this question. For some reason, however, the laptop refuses to get a DHCP lease.

winipcfg always yields an IP beginning 169 (meaning: "DHCP lease failed"). I can't even release an IP (is this standard behavior for 169 IPs?). I've tried switching USB cables, and even switching the USB for the RJ-45. I've tried uninstalling and reinstalling the modem drivers. I've tried restoring an old registry. And yes, I've rebooted zillions of times. Always the same thing: DHCP lease fails. My ever-useful modem guide suggests harassing my ISP, but since the desktop works fine, I doubt it's on their end.

This setup has been working (albeit with a hitch here and there) for months.


~Modem cycle fixed it.~
Sheesh. "Sorry" and "Thanks" all at once.
*mumbles about 'puters and feels stupid*

A:DHCP lease errors, out of the blue

Read other 8 answers

I have a VPN gateway device that I need to install that requires a static IP. The cable modem provider will not give out a static IP no matter how much I beg. So here's what I was thinking. Currently I have a Cisco router in the network that I want to replace with the VPN gateway. The router is DHCPing an address from the ISP and it has been the same address for over a year now. I was thinking of just programming the VPN gateway with that address and sticking it in there. But I would assume that the once the dhcp lease expires and the dhcp server puts the address back into the pool problems could arise and a call from the ISP would be expected. So, to overcome this I was thinking it would be nice if there was a utility out there that could maintain a dhcp lease for another device and renew it as needed so that the IP address doesn't change. Is there such a utility? If so, where can I get it? I would prefer something I could stick on a Linux box since I have a couple of them connected direct to the cable modem (via a hub). All the other computers and devices are sitting behind the cisco router. Or, if nothing is available is there any other work around?


A:Having another computer maintain a DHCP lease

Read other 6 answers

im using a d-link di-604 router to share a broadband connection(cable)between two pc's. under the dhcp tab, dhcp server is enabled, there is starting and ending ip address and lease time which is set to one week. what does this lease time thing mean? sorry newbie question.

A:DHCP Server Lease Time

Read other 6 answers

So I've been getting ddosed recently and my ISP will not change my IP, they've told me to shut off my modem/router it's a 2 & 1 for 5 mins/hour, I've done that.

My DHCP Lease Time is 24hrs, could I make it 1 hour and shut off my router for 1 hour and have a new IP? Can anyone explain this to me?

Read other answers

REF http://forums.techguy.org/t39523.html

I have a very similar situation.

I have a windows 98se machine runnong on an Intel Celeron 600MHz with 128MB of ram.

The OS was just installed.
I am trying to instal an HP USB burner - I used this device before with no problems.

The drivers are located on a diskette. The manuf instructions advise to connect the power and usb cables and boot the pc with the diskette in the drive when windows finds the new hardware select the floppy drive.

When the pc is booted is finds new hardware lists it as "unknown device" and does not promt me for any input. If I go to device manager the device has a red x. I've tried to remove the device and reboot - same thing. I've tried to update the driver and it says the best driver is already installed c:\windows\inf\usb.inf

The ref url was resolved by changing the order of connecting the cables.....I have tried ever combo I can.
Can someone please tell me how to point to the correct drivers ?


A:WIN 98se auto installing a usb device as UNKNOWN DEVICE

Read other 8 answers

Ok, Toshiba Satellite, unsure of model. XP Pro, all nicely updated. Intel Pro 2200 BG internal wifi card. Using the Intel Wireless manager.

Hadn't been able to get a good address when attempting to release/renew on the card. Tried everything I could think of, updated the drivers, removed encryption from the access point, tried connecting to a different network. Nothing would make it get a new (proper) address. Except for one thing, when the driver was reinstalled, it would properly get an address via DHCP and work nicely. Reboot, then nothing, won't get a proper address no matter what.

Swapped in the wifi card from my laptop, Intel 2915 ABG, it's based on the same driver. Detected the card on boot-up, Winblows installed the driver, connected very happily to the network. Reboot. Now it won't get an address.

This made me think. So, I went into the device manager, deleted the card, re-detected it, it joined the network no problem, and received a proper address via DHCP.

Any thought on this one?

Oh yeah, I also did a repair install of XP thinking maybe there was some Winblows update the broke things. No such luck.

A:Intel Pro 2200bg On Xp Pro Won't Renew Dhcp Lease

Have you tried connecting to the network manually when it doesn't give you an address?
Have you tried to recycle the router (remove the power cord from the router and turn the PC off, wait 3 minutes, turn the router back on, wait 3 minutes, turn the PC back on)?

Read other 5 answers

I'm on ADSL, and the provider automatically renews the IP every 4 days. Under Win XP, I simply had to click on the network icon in taskbar (lower right corner) and the window showed me since how long I had been connected (and thus if there was a risk of getting disconnected soon or not).

How can I easily get to the same info under Win7 ? (Win7 Ultimate x64)

By "easily", I mean without having to use cmd > ipconfig all
Many thanks in advance.

A:How to find out DHCP lease time remaining ?

Quote: Originally Posted by BouhPwet


I'm on ADSL, and the provider automatically renews the IP every 4 days. Under Win XP, I simply had to click on the network icon in taskbar (lower right corner) and the window showed me since how long I had been connected (and thus if there was a risk of getting disconnected soon or not).

How can I easily get to the same info under Win7 ? (Win7 Ultimate x64)

By "easily", I mean without having to use cmd > ipconfig all

Many thanks in advance.

You don't get disconnected at all!! How do you mean?

Read other 2 answers

I have two PCs in two different locations of the neighborhood and each with a different Internet provider. Both are served by a radio link from the respective (different) providers (Antenna on the roof, Modem DSL box inside, Ethernet cable connection to PC).

The trouble arises at one location where the connection sometimes goes down briefly and then is back up but sometimes is gone for good. The provider then advises to cut off the mains power to everything (modem box, PC etc) and reconnect after a couple of minutes.

It usually works but sometimes it doesn't at all. Last night 3 times had no result. I contacted the Provider this morning who told me to disconnect/reconnect again and this time it worked. But he told me that they had done nothing their end and that the PC here had failed to renew DHCP lease. I understand what that is but my PCs at the other location have never had that issue (DHCP change is not so frequent with that other provider but this one here is expanding his customer list).

What bugs me is that the net goes down frequently with this one during a session but then comes up again, presumably renewing the DHCP lease all the time. Takes a coupla seconds, half a minute at most (DHCP changes quite frequently I know from a neighbor who often runs the config command).

I'm leery of the (usual) provider take that the fault lies/lay at my end.

I've only been working on this one for about a week so I don't know the provider's track record... Read more

A:Solved: PC fails to renew DHCP lease?

Read other 12 answers

Can someone please tell me how to change my LAN DHCP Lease Expiry time! Mines currently set at 1 hour and its driving me crazy!

A:How to change your LAN DHCP Lease Expiry time

Read other 16 answers

Hello! After weeks of my own investigation and trial and error, I have come to you guys for, hopefully, an answer.

First off, my Laptop is about nine years old, HP Pavillion Pentium 4. I run Windows XP Home Edition Version 2002 SP3. I use a broadband card from Verizon that I just put in my USB (no router, etc) I'm getting a System Error Source DHCP Event ID 1002. When this happens, my computer, I believe, is going into sleep mode and I have to reboot the system. When I turn it back on and go back on the internet, all my websites that I was in are still there.

The error says: The IP address lease for the Network Card with Network address 2c3068c16ED1 has been denied by the DHCP Server (The DHCP Server sent a DHCPNACK message)

It gives an explanation too: The DHCP Server Service did not extend the lease on your computer's IP address, so your computer temporarily lost its connection with the Network.

OK, so here are all the things I tried. I tried the ipconfig /release and ipconfig /renew. I tried going in services.msc and going under DHCP and keeping it automatic but stopping it. I called Verizon and I believe he refreshed my Network settings (I think I knew more about the topic than he did) He said it was my computer, whatever. I just tried the static IP but it didn't seem to take. I restarted and it jumped back to automatic. My last guess is it's something to do with the time frame of when it automatically obtains the addre... Read more

A:IP Address Lease Denied by DHCP Server

Read other 10 answers

I installed my linksys wrt54G v1 router that has DD-WRT v32 SP2 on it and my network worked great. I then plugged in my linksys switch with about 20 devices (internet phones, networked printers, windows pc, linux asterisk phone system) already connected and on. Almost immediately my internet went down, I could not access my router hardly ever, and lan connectivity failed or was flaky at best.
The dhcp lease table did not show the new devices assigned except for several static assignments.

I unplugged the switch, power cycled the router and all was fine.
I then plugged in the switch without devices and worked fine.
I turned off all networked devices connected to the switch, turned them on one at a time. Then everything worked. The lease table showed all the devices with default lease time of 24 hours.
About 48 hours later I walked into the office with internet down, no lan connectivity, and could not log onto the router either.
I performed the same fix above, and now we are working again just fine.

I had the same problem with a stock linksys 8 port router and using either the linksys switch or a netgear switch.

I think I am having lease renewal dhcp issues, but I have never experienced this problem before. I would appreciate your advice to avoid the next network crash - it ruins my morning.

DD-WRT v23 SP2
linnksys WRT54G v1
linksys 24 port switch

A:DHCP lease renewal issues crashes my network

Read other 7 answers

Probably this error is pretty much a non-issue and I haven't a clue if the affected W7P machine, even runs Windows Server 2008 R2 (or any windows server for that matter).

Is this 'server' thing, software that is by default installed (and I'm guessing it's only used when the machine networks with another machine, home/work groups)?

As for if and what version the W7P machine even 'runs', the only loosely provided instructions I've found (by clicking the event log's link to information about the error), results in a webpage...

Event ID 1001

..which sort of implies to me that the W7P machine might be running 'Windows Server 2008 R2', if only because the event log error report's link led me to that web page's article, ie; the article says it applies to Windows Server 2008 R2.

I tried following the article's mentions of checking to see what version of 'server' that is installed, but step 2 seems too poorly written for me to follow what's actually be said...

Determine if there is a network connectivity problem
To determine if there is a network connectivity problem between the‚ DHCP‚ server and domain controller:
At the DHCP server, click Start, click Run, type cmd, and then click OK.
At the command prompt, type ping server_FQDN, where server_FQDN is the fully qualified domain name (FQDN) of the domain controller (for example, server1.contoso.com), and then press ENTER.
What's unclear to me is where it alludes to...

"..where se... Read more

A:Event ID 1001 DHCP Client Lease Validity

I have been looking at the same page as you, and I too am just as confused about how to follow the instructions. It would be good to fix this problem, but how is it done?

My event viewer shows this error.
Event 1001, Dhcp-Client

Read other 2 answers

I am having trouble with DHCP and sleeping Windows 7 systems.  My Windows 7 systems go to sleep after an hour or so.  The Intel and Broadcom NICs we have use ARP offloading so they continue to respond to ARP while the machine is sleeping. 
The problem is that after the DHCP lease expires, the NIC continues to respond to the ARP requests and that causes IP conflicts on the network because the computer is responding to ARP requests for an IP address the computer has lost its lease on.  Any
time a computer is asleep for longer than the DHCP lease time then when a new computer gets the IP from the lost lease, an IP conflict is reported because the new leasee does an ARP to see if the IP is in use and the sleeping computers NIC responds to the
ARP and this results in an IP conflict for the new leasee.
I opened a ticket with the Hardware Vendor, which is Dell in this case, and they opened an engineering case with Intel - the NIC OEM.  The outcome of this case what that this is Windows fault.  Windows is supposed to wake up from sleep and renew
its DHCP lease at the lease half life and then go back to sleep.  My computers are not doing this.  They let the lease expire while they are sleeping.
Is there a problem with Windows 7 that prevents it from waking up and renewing its lease periodically?  It is supposed to maintain the lease according to Dell and Intel, but in my case it it not. 

Read other answers

The IP address lease for the Network Card with network address 0xD0DF9AEDE650 has been denied by the DHCP server (The DHCP Server sent a DHCPNACK message). Log Name:      Microsoft-Windows-Dhcp-Client/AdminSource:        Microsoft-Windows-Dhcp-ClientDate:          5/4/2018 7:12:47 AMEvent ID:      1002Task Category: Address Configuration State EventLevel:         ErrorKeywords:      User:          LOCAL SERVICEComputer:      User-PCDescription:The IP address lease for the Network Card with network address 0xD0DF9AEDE650 has been denied by the DHCP server (The DHCP Server sent a DHCPNACK message).Event Xml:<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">  <System>    <Provider Name="Microsoft-Windows-Dhcp-Client" Guid="{15A7A4F8-0072-4EAB-ABAD-F98A4D666AED}" />    <EventID>1002</EventID>    <Version>0</Version>    <Level>2</Level>    <Task>3</Task>    <Opcode>76</Opcode>    <Keywords>0x4000000000000000</Keywords>    <TimeCreated S... Read more

Read other answers

WPN824v3 router

ISP ---- router ------ MyComputer

Lately I've been having intermittent internet connectivity problems.

When I log in to my router and view the "connection status" page, it shows the date&time for "lease obtained" and for "lease expired". The date&time are exactly the same for both. Yes, exactly the same - not 24 hours different.

Is this abnormal? And how would I fix it? Or is it a config error at my ISP?

A:lease obtained date&time same as lease expired

Read other 6 answers

I just reinstalled a Gateway-m1615 vista before to a xp, and now my problem is i dont have some of the drivers and including the sound. my wireless connection driver is already install and working but it say limited and no connectivity. but the sound is my problem first, i can't find my audio device, tried all of the drivers(including the realteks) that some of the people say will work to any opertaing system but it didnt. i can see the device on the device manager but i can't update it even though i have internet.

missing devices are:
audio device on high definition audio bus
audio device on high definition audio bus
unknown device
unknown device
unknown device

and i can't find this all. help!
system info:

System Information
Time of this report: 1/6/2010, 21:06:06
Machine name: BEASTMIT-95B814
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.090804-1435)
Language: English (Regional Setting: English)
System Manufacturer: Gateway
System Model: M-1615
BIOS: BIOS Version 90.02
Processor: AMD Turion(tm) 64 X2 Mobile Technology TL-56, MMX, 3DNow (2 CPUs), ~1.8GHz
Memory: 1662MB RAM
Page File: 592MB used, 2965MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.5512 32bit Unicode

DxDiag Notes
DirectX Files Tab: No problems found.
Display Tab 1: No problems found.
So... Read more

Read other answers

I upgraded to Windows 10 a while back. Every time I open the computer I get a pop-up notification telling me the USB device is unrecognized. I have no USB devices in any of my 3 USB ports.
I sent my computer in twice. No help. They just uninstalled everything and reinstalled everything and told me it should be fixed. It is not. I then went about updating every driver in my Device Manager. I uninstalled the Unknown USB Device and then updated
other drivers. Certain drivers (such as PCI Express Root Port #3 - 9C14) when updating would also reinstall the Unknown USB Device, which I would then uninstall and keep working down the list. At the end of updating EVERYTHING I scanned for hardware changes
and "found" the Unknown USB Device. 
From what I can tell, and I know very little about this stuff, my computer can't name one of my USB ports. Since it can't figure out what it's called it can't download the proper driver for it. Since it can't download the proper driver it can't work properly.
The practical result from this is that one of my three USB ports does nothing when I put in any USB item (connect my android phone, thumb drive, presentation clicker, etc).
I've looked on tons of forums. My current thought is that if I can tell my computer what the deice is or download the right driver and tell my computer to use that driver for this device it should solve my issue. But I don't know how to know what the name
of the USB port should be (I imagine it woul... Read more

Read other answers

Hi everyone !
I'm new on this forum, so I hope this first question will prove to be a good experience with you guys (also please excuse my litterature-related mistakes as english is not my first language ^^').

So here is the problem :
I have a server running fine under Linux
providing DHCP and NTP services.
DHCP is configured to give the NTP address to requesting clients.

It is working fine under Linux clients,
but I have no clue to say to a Windows machine
to deduce the NTP server from the DHCP response.

Has anyone any clue ?
Am I hopeless ?
If you know the problem but have hardly the time to detail your response,
feel free to post a link to related documentation, I just need a start .

A:auto config NTP with DHCP

Read other 6 answers

My home network is supposed to have a typical IP range of and subnet of, but for some unknown reason, the DHCP server is not assigning the correct IP to connected devices.  As a temporary solution, I've been manually assigning
IP addresses to each and every device in my network.
I'm not sure how can I revert my network back to normal.  It was running fine for several months and suddenly this issue pops-up.  At present, the DHCP server seems to be not working at all.  If I tried to obtain IP automatically, I will get
the following IP and subnet mask: (Preferred)
I've tried to disconnect the potential devices (2 WiFi Repeaters which are set to AP mode - their SSID <g class="gr_ gr_706 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar multiReplace" data-gr-id="706" id="706">are</g>
MYS-1stFloor and MYS-2ndFloor) that may be causing the DHCP conflict and restarted the entire network, ensuring that only the intended DHCP server (the main router from my ISP) is connected to the network switch, but it doesn't work.  Somehow, an unknown
network by the name of "MYS-1stFloor 3" appeared when I am connected to the network via LAN cable.  I have no idea where this network comes from.
Is there any way to check which device is taking over the role of the DHCP server?  Or maybe my router is faulty so its DHCP function i... Read more

Read other answers

I basically just have a lot of random questions to be honest.. Probably easy for a lot of you! If you could work with me just a little bit that would be so much appreciated!

For example:
-BIOS help (x4,x1,auto for PCi) (Do I disable anything important in BIOS?)
-Device manager help (I know I could have half the devices.. So many system devices)
-Basic AV and Firewall questions (Am I okay just using Windows Defender and Windows Firewall?)
-Questions about sound devices

I have been looking at these forums for some time now. I have seen a lot of very knowledgeable people in here; and that Is what made me actually Sign up and try to be active as I can in these forums. I just need someones help for a little bit with me to work with me and explain a few things; like I said I would really appreciate it! Thank-you so much!

A:BIOS x4, x1, Auto, Gen3, etc, Device Manager device

Auto (why would you want to disable anything , what are you thinking of disabling)?
Don't worry about it
AV-Comparatives Firewall Reviews - AV-Comparatives (download the pdf for firewall tests) make up your own mind
fire away

Read other 3 answers

Few days ago suddenly my Logitech MX master mouse (bluetooth connected) stopped working. Then I figured that Bluetooth can not be enabled. Then I saw that in Device manager have problem with unknown usb device, which device decriptor failed. Usb ports are without any device connected. All four of them empty now. Any kind of windows, usb/bluetooth driver update/uninstallation is not helping, so this is why I am trying to find help. So please help.   

Read other answers

hello all. i dont come around to this site very often but i desperately need you guys help.

im trying to get a gamebridge i purchased a few days ago to work. the first day i had everything going according to plan and had it installed on there and everything, but then i was having problems with it... it wouldnt show my game screen. so i decided to install to a new usb drive.

i took the device out and tried to reinstall to another drive but it didnt work... and now when i try to put it back into the original drive it gave me an error. so i went into device manager and unistall the device manually from the original drive.

but now i try to install it again to any drive it give me the code 28 error...
someone please help me i really need to fix this problem.

thanks in advance!!!!!!!!!!!!!!!!!!

A:USB drive not properly installing device(GAMEBRIDGE). (unknown device code 28)

Read other 8 answers

hie i have just installed window 7 and this devices are missing, any help will be very much appreciated.
base system device
device id


LOCATION; PCI bus 0 device 2 function 1
PCI\VEN 8086&DEV_3582&SUBSYS_120E10CF&REV_02
My laptop is FUJITSU-BIBLO MG13D

A:base system device, video controller and unknown device missing

Before I can help you, follow these instructions to let me know more about it: New to SevenForums? Fill out your system specs (this tool may help you out a great deal).

Read other 4 answers

Note: Device manager lists appropriate bluetooth antennae.  Some items are still showing up ok, but many (some new, some previously paired) are listed as unknown now, so they are useless to me until this is resolved.  This is a fairly new Flex5 (bought at Microcenter about a month ago).I ran the Lenovo "Vantage" program to get the latest bluetooth drivers on board.Tried uninstalling BT driver and running manual install of intel and Qualcomm drivers.  Windows10 is not seeing the Intel ones, I think as when I try to change the driver to the intel ones I only see the the QualcommAtheros and the generic bluetooth drivers available.  I ran that installation a number of times, but havn't been able to try the Intel drivers yet.  I'm not sure if they will fix the problem, but would like to try them, unless someone here can point me at something else that may be the cause.  Thanks for any info! 

Read other answers

I was just working happily when my Microsoft Bluetooth Mouse just suddenly stopped working.
The Bluetooth settings page says "Bluetooth is turned off" and there are no options on the settings page or the system tray to turn Bluetooth on.
The Device Manager now has "Unknown USB device - device descriptor request failed" where it did not before.
Other devices all seem to be working fine - USB devices plugged in are being recognized and work properly. Only BT seems to be broken.
I've tried:
uninstalling the device and rebooting
installing the latest updated chipset drivers from the dell website
windows updates
pretty much all of the advice here: http ://troubleshooter.xyz/wiki/fix-usb-device-not-recognized-device-descriptor-request-failed

Any other ideas?

A:XPS 15 9550 Bluetooth stopped working (Unknown USB device - device descriptor request failed)

So in desperation I just went into BIOS settings to see if there are any BT settings that may have become disabled. I didn't see any, and I didn't change any other settings.
After rebooting, BT and my mouse is now working again.
Something seems to be really flaky here, but hopefully this will help others with the same issue.

Read other 1 answers

CONFIGFLAG_FAILEDINSTALL  0000040error 28error 31unknown device and unknown driver listed in device manager; only info is seems to be USB driver issue! 

A:CONFIGFLAG_FAILEDINSTALL unknown device unknown driver; won'...

Hello os4hwks Please try Installing the following driver and confirm. This is the Chipset driver-  http://ftp.hp.com/pub/softpaq/sp55001-55500/sp55095.exe Can you even try providing the PID and VID for the unknown device? Please follow the steps below to obtain that info -  Click Start, Control Panel, Administrative Tools.In the right pane, double-click Computer Management.In the left pane, select Device Manager.In the right pane, search for the device you want to find the hardware ID.Right-click on Device and select Properties.In the Device Properties window, click the Details tab.From the Property drop down list, select Hardware IDs. A VID and PID number displays in the format:USB\VID_&PID_\ Hope this helps, for any further queries reply to the post and feel free to join us again  **Click the KUDOS/Thumbs Up button to say Thanks**Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.Thank YouAbhinab_Assists 

Read other 5 answers

I have a Toshiba laptop, model L505-ES5018. I had Windows 7 Home Premium 64 bit installed on here, but decided to reformat my hard drive using Windows 7 Ultimate 64 bit. After the reformat was finished, I ran Windows Update and it found several items to download and install for me. I noticed that it also found optional items to download and install for me, so after all the important updates installed, I ran the optional updates. After all of this installed, I checked Device Manager to see if there were any errors and I found nothing. I assumed everything was fine. I decided to check Devices and Printers and under my laptop icon, there was a yellow icon with an exclamation point on it. I decided to run the troubleshooting option when I right-clicked the icon....it gave me a solution to download a Toshiba password utility program, so I did that and nothing happened, even after restart. Same icon appeared. When I clicked on the icon a second time, I noticed that the model of my computer at the bottom of this window, changed from L505 to TIAS. I have no idea what this is. I decided to do another reformat on my hard drive. This time, I ignored the optional updates. I checked Devices and Printers again, the same icon appeared but the model of my computer said L505, like it should. There is something in the optional updates that is changing this. Could it be the Intel chipset driver that the optional update is pushing? I'm not sure. I went back to Device Manager, th... Read more

A:Unknown Device in Device Manager/Show Hidden Devices

Hi there ... You should Install the chipset Driver and also the Realtek Driver for your card Reader ... From the Toshiba website ... The Link is provided below

Satellite L505-ES5018 – Windows 7 32 and 64-bit Drivers Download

Read other 2 answers


Sorry that last word didn't get in the subject line.


These two values are:
My bios info

So should I do this:

ASUSTeK Computer Inc.-Forum- driver missing
When I download that zip file from under "Install the Bluetooth driver:" it has so many files to choose from.... I don't know what to do?

I've also found out that I need to disable "boot from network" or "boot from lan" in bios to get rid of this unkown device issue?

A:Unknown device in device manager after Bios default settings are

Well it might be a good idea to look at the following tutorial:

Device Manager - Finding Unknown Devices

Use the link in Step 7

Also I tend to find this tool useful:

Download Tweaking.com - Hardware Identify Portable - MajorGeeks

Right click on each result in the list for more options.

Edit: On my machine a similarly named device appears to be a webcam.

In the list USB Composite Device doesn't mean much but matching the ID seems to indicate that it's the webcam.

Read other 4 answers

I have Windows 7 Ultimate. Since very recently an unknown device keeps popping up in the device manager every time I start Win. It's reported location is within the front USB root hub but I haven't changed there anything lately. The device status reports "Windows has stopped this device because it has reported problems (Code 43)". I can uninstall/disable it but it will get picked up again the next time I reboot. All other usb devices (mouse, keyboard, web camera, APC UPS, external drive, printer) work fine. How do I get rid of this nuisance so that it doesn't reappear?

A:Unknown device: Windows has stopped this device because it has reported problems (Cod

Read other 6 answers

How do i figure out what driver or even component windows wants software for when in the device manager under other devices it lists an unknown device and windows update cannot find anything.

Oh and is it appropriate for me to use this topic to ask another question regarding explorer.exe as while i am inside a folder i delete (by choosing delete from the context menu in the tree view) while inside that folder on this particular laptop PC explorer. always crashes, collect information, sends it and restarts explorer. I have not experienced this problem on any other pc running any version of windows 7, oh and the same happened with build 7264 x32 and the current install of build 7600 x64.

A:Device Manager reports Unknown Device & explorer crash

Please fill up the System specs...

Read other 1 answers

Hi everybody.

I just bought myself a Powercolor Radeon HD 4890 yesterday. After installing the card and the required drivers everything works like a charm. However, every time I start up my PC I get a message saying that a new device has been found on my system. On checking Device Manager I found an "Unknown device" entry under "Other devices".

I'm attaching a screenshot of Device Manager.

Are there any drivers I'm missing? It only happened after removing my old card (after uninstalling all its drivers) and installing the Radeon.

Any help is greatly appreciated.


A:Unknown Device In Device Manager After Installing Radeon HD 4890

I have a Powercolor Radeon HD 4890 (I also have a Gigabyte 4890 and XFX 4890 in two other PCs). I think you need to install the latest ATI Catalyst Suite. You may have installed the driver only package. Anyway, I think it has to do with the HDMI capabilities of the card. High def sound is built into the card (the HD part of the card name) and the HD sound driver is part of the Catalyst Suite. When you use an HDMI cable to an appropriate display, HD sound is also transmitted through the same cable from the Radeon graphics card.

Of course, be sure to install .NET Framework 2.0 as it is required before you can install the full Catalyst Suite. The HD sound driver won't install without it. At least I had trouble before I installed .NET 3.5. I went to Windows Update and installed .NET Framework 3.5. 2.0 is included in that update and 2.0 wasn't available separately.

Read other 24 answers

I need assistance finding the drivers for my elitebook 8570w.  Hardware ids are attached.  Please help thanks

Read other answers

My 7270 latitude touch screen stopped working shortly after first use (after win update worked again but for a short time).
All drivers are up to date.
In device manager a USB device shows as unknown (yellow warning triangle), otherwise there are no indications to the source of the problem.  There is no other touch screen device showing in device manager. 
How do I perminently solve this?

Read other answers

I have a unknown device in device manager. When I plug in my power cord to charge i get a black screen as soon as i unplug the windows screen comes back. Not sure if these are related or not.


View Solution.

A:Unknown Device - Device Instance Path (ACPI\INT33BD\1)

Hi: I am pretty sure you need this driver.  The latest is for W8.1. This package provides the driver that enables the Intel SidebandFabric device. Intel Sideband Fabric Device Driver is a bridge tothe Intel Dynamic Platform and Thermal Framework. This package isprovided for supported notebook models that are running a supported operating system. File name: sp65474.exe I don't know if not having that driver installed is related to the black screen issue.   

Read other 5 answers

I recently put together a new computer, and in the process of of installing the USB 3.0 connector from the front of my GX500 case, I either bent numerous pins on the motherboard USB 3.0 header or the motherboard shipped that way and I inadvertently made matters worse. Anyway, that header on the motherboard is without a doubt unusable.
Since I don't really need the USB 3.0 functionality, I bought a USB 3.0 -> 2.0 adapter cable, connected one end to the connector on the front of the case and the other end into the USB 2.0/1.1 header on the motherboard. Unfortunately, when Windows 7 boots and I plug a device into the front ports of the case, Windows detects the front USB ports as "Unknown Device" within Device Manager yet says the driver is successfully installed. I've already downloaded the most current Intel chipset drivers for my motherboard, deleted and reinstalled all USB drivers, and all rear USB connections are working perfectly fine - it's just the two front ports that are connected from the case to the USB 2.0/1.1 ports via the adapter cable.  I've tried both USB 2.0/1.1 headers on the motherboard, and I've tried plugging in several devices to the front USB ports, and this problem still persists.
I've ensured the connection inside the case is solid, yet I cannot get Windows to recognize the front USB ports.  However, I have confirmed that power is being sent to the front ports because it charges my phone when I connect it to the front USB ports via m... Read more

A:Front USB Ports not Working - "Unknown Device" in Device Manager

If your motherboard has a 1x pcie slot you can get a card like this...
Some motherboards it's a tight fit because of the video card taking up space. In that case you can relocate the above card with this...

Read other 6 answers

I plugged my android device to my PC by usb ..it is saying USB device not recognized. Please help me.

Read other answers