Over 1 million tech questions and answers.

Error: Domain controller could not be found for the specified domain.

Q: Error: Domain controller could not be found for the specified domain.

I have an employee that gets this upon every boot on his assigned laptop. I have utterly no idea what it means or how to correct it. Help needed please.

Preferred Solution: Error: Domain controller could not be found for the specified domain.

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: Error: Domain controller could not be found for the specified domain.

Check the machine account. You might also delete it and recreate it. This may require a domain admin to rejoin the machine to the domain.

Read other 2 answers

I am trying to add a win 7 pro pc to a domain and I get this error " an attempt to resolve the DNS name of a domain controller in the domain being joined has failed"
I am running win server 2003 can anyone help?

A:error an attempt to resolve the DNS name of a domain controller in the domain being joined has failed

Ok I got it to work I put in the DNSserver address agine same as I did yesterday ( I must have put it in 3 or 4 times) and it din''t work I did it agine today and it worked the frist time. Thank you every one for your help

Read other 13 answers

When I logon to our network I get "Domain controller for this domain could not be found:. The event viewer records event ID 5719 in the system log:
No Windows NT Domain Controller is available for domain PGMS_LAW. (This event is expected and can be ignored when booting with the 'No Net' Hardware Profile.) The following error occurred:
The RPC server is unavailable.
According to MS support the way to resolve this is to disable LMHOSTS lookup box. This was not enable on any machines and now I'm stuck. Does anyone have any ideas?

A:Domain controller for this domain could not be found

Simplest thing to try is remove it from the domain (make sure you have a local account with admin rights FIRST). Then re-add it to the domain.
Can you see/use network resources otherwise? Are the lights on on the NIC? Have you tried a different cable/network port?
Maybe remove/re-add the NIC. Check all the properties, correct IP/subnet/gateway/etc.......

Read other 1 answers

I have a Machine with windows 7 x64 pro which was connected to a domain controller that is dead and not available anymore.
I want to continue to use this computer standalone and keep all the software and configurations already installed, however i need to change my pass and i am not able to do it getting this msg : configuration
information could not be read from the domain controller, either because the machine is unavailable, or because access is denied.
How can i solve this (change the pass or copy all the user settings to local) without the domain controller server?
thank you

Read other answers


IP settings 

Subnet mask




Windows 7

IP address automatically  





error code reads 


following error occored wen DNS was queried for the servise location (SRV)

record used to locate an Active Directory Domane Controller (AD DC) for Domain



error was: "This operation returned because the timeout period expired."

code 0x000005b4 ERROR_TIMEOUT)


query was for SRV record_ldap._tcp.dc._msdcs.dalek.local.

DNS server used  by this com... Read more

Read other answers

dear all

i have a problem in adding addtional domain controller in my forest domain.

when i try to add additional; domain controller after working few miniutes it gives meessage THE ACTIVE DIRECTORY WIZARD IS UNABLE TO CONVERT THE COMPUTER TO DOMAIN CONTROLLER ACESSES DENIED


But the user name has full permission he is administrator

please help me

Read other answers

An old client called me and he's still running a system I set up for him over a decade ago running an NT server. For some reason his network went down. When I looked it said "domain controller not found. What happened? I noticed that his HD only had around 600MB left. Could that be it? No room to load and swap out etc.?

Also event viewer says there is a bad block on the HD. maybe that?



A:NTt domain controller not found (yup!)

Did you check to see that WINS is running and the workstations are set up to connect to it? Have you checked to see that the workstations can do name lookups?

Read other 2 answers

I've been trying to join a new Windows 7 Professional machine to a domain controller running Windows 2003 Server with no luck.  We currently have 4 Windows XP machines running on that domain without any issues, but when I try to add the Windows 7 computer,
here is what happens:

A computer account on the domain could not be found (confirmed it is already there)
I put in the computer name and domain again, and Administrator credentialsNow it tells me: "An attempt to resolve the DNS name of a DC in the domain being joined has failed."
I currently have DNS on the Windows 7 PC set to the Domain Controller and have IPv6 unchecked under Network Properties.  I can even ping the domain name (resolves to IP of the domain controller).  It looks like it can, indeed, find the domain from
the message in step 1, so am I missing something here?
Thanks in advance for any help!

A:Cannot join Windows 7 to domain even after setting DNS to domain controller IP

You need flush your DNS cache in client side first.
Then, let?s create the following registry value for a try:
 - Created a DWORD DomainCompatibilityMode = 1
 - Created a DWORD DNSNameResolutionRequired = 0
Reboot the machine and check the result again.Alex Zhao
TechNet Community Support

Read other 17 answers

Hello everyone,

So on my work laptop yesterday i got disconnected from the network, and upon trying to reconnect i had internet access but no network access, ran through some diag, was able to ping my other work station, ip,dns and dg where all fine, checked for dns records issue, none found. so i removed it from the domain and tried re-adding it, and this is where the problem is no matter what i do i cannot add this laptop on the domain. i get full internet access on the network but no network access. i know the Dns server is functioning perfectly and cant be the issue, i have also flushed dns, rebuilt tcp/Ip stack and removed all lan and wlan profiles. i am also getting a certificate error when trying to access the network on wlan.

Using my local admin here are some print screens of first the issue when trying to add the laptop back to the domain, then Ping results to my DNS server .

after removing the machine from the domain it now no longer picking up the correct DNS server.

Would assigning a new DNS record resolve the issue???

he following error occurred when DNS was queried for the service location (SRV) resource record used to locate an Active Directory Domain Controller (AD DC) for domain "bareesc.bareescentuals.com":

The error was: "DNS name does not exist."
(error code 0x0000232B RCODE_NAME_ERROR)

The query was for the SRV record for

Common causes of this error include th... Read more

A:An active directory domain controller for the domain could not be contacted

Funny enough, we've found a handful of users on our network today unable to access local resources for the same reason!

Your DNS settings are being hijacked. They should point at your DC, but instead are pointed at a malicious DNS server hosted somewhere in Israel. Give your computer a good bath before letting play with the other children again.

We're currently in the process of mediation around here, too.

Hope that helps!

Read other 2 answers

I have a laptop running windows NT and attempting to log on to the system with dial up networking. The domain controller not found message comes up upon connection, what could be causing this?
-I have set up the user in RAS and believe all the settings are correct.
-The modem I am dialing into is on a member server on the network, it was previously a bdc which the user could dial into with no problems.
-I have no problems with a windows 98 machine dialing in with the same username.
- attempted logon with numerous different usernames including admin and the one that works with win 98
- dialup is authenticated, then message comes up for no domain controller.

A:{Solved} - domain controller not found on RAS dialup

Read other 6 answers

I am installing NT 4.0 onto a server to be a BDC. During the installation, when I get the the networking setup, I receive the message that the primary domain controller for that domain is not found.

I have checked to ascertain that the link lights are all working that the driver has installed that the proper IPs are included. And a number of other hoops. When I run the diagnostic provided it shows that everything passes except the 'loopback'. I have also checked to be certain that other computers are accessing the PDC, and they are.

This server was formerly set up as a SQL on another domain and the NIC worked fine. I simply want to use the unit as a BDC for this domain.

Please let me know if you have any suggestions.


A:Domain Controller Not found during NT BDC server install

Read other 6 answers

Hello everyone. I really hope that you can help me. You are my last hope.

I maintain about 30 domain computers. Recently when users try to log in on most of them the following error appears frequently:

"Windows cannot connect to the domain, either because the domain controller is down or otherwise unavailable, or because your computer account was not found. Please try again later. if the message continues to appear, contact your system administrator for assistance."

I have seen that this error appears only in the computers with Windows XP and not in the computers with Windows Vista or 7. We have 2 domain controllers.

Please let me tell you about the ways I tried to resolve this problem and their results:

- on some computers, after several restarts the users are able to log in, but if they restart or shutdown after that the error appears again; this worked for some computers, but I do not know if the error will appear again in the future.
- on some computers, when i disabled the windows firewall or allowed all kind of ICMPs it was resolved, but this did not work for all the computers and I do not know if the error will appear again in the future.
- I unjoined and then rejoined some computers from the domain and it was resolved but after restarting the error appears again.
- If I unplug the network cable the users can log in but after restart the error appears again.
- I have tried to reset the user password and computer on the Active Directory for some users and... Read more

A:windows cannot connect to the domain, either because the domain controller is down...

Read other 16 answers


We have a server set up with serval computers t. I formated a pc that was on the domain and now trying to attach it back to domain and i get the message.

Domain Contriller could not be contacted
I putted all the settings same as the other pc's..

i'm also getting the message " ip adress already in use. but i'm using the same ip as the pc had before i formated the pc. is this the reason that i get the message , Domain Contriller could not be contacted

i also can ping from the pc. to the server

Any Ideas?

thanks for the help

A:Problem:A domain controller for the domain could not by contacted

sorry i mean i also get the message " a duplicate name exist on the network"

Read other 1 answers

There is this windows NT sp6 machine that when you log in to the microsoft network to the domain it gives you the:

"A domain controller for your domain could not be contacted. You have been logged on using cached account information.

Changes to your profile since you last logged on may not be available."

BUT! I CAN contact the domain controller AND my changes to profile are available. If I log off and log on again it does not give me that message.

The NIC drive is correct. Email works. IP configuration is perfect. everything is fine except that message.

Asked other Techs but they say that they have seen it before years ago but that they couldn't find solution. --- They just left it like that because everything was fine.

Anybody out there knows anything about this weird occurrance?

A:{Advice Offered} - domain controller not found? BUT is connecting fine!

I know of three reasons for this symptom.

One reason is that the server is attempting to login before the network port on the switch/hub has fully initialized. This is the more likely reason in your case, as you can logoff and then not receive the error. Some network devices (Cisco 5000 series switches and others) have this slow port initialization problem when the client network adapter is set to auto negotiate. We eliminated this symptom by hard setting the switch port to 100mb/full duplex and hard setting the client network adapter to 100/full duplex.

Another reason could be that you have an old lmhost file on this server with an invalid #PRE #Dom entry. An invalid entry is if you have the #Dom: and the pdc is not the server name listed. If you are using wins you can just rename the lmhost file so it will not be used.

another reason is the wins entry for this server is corrupt. You can fix it by typing nbtstat -RR at the dos prompt on the machine you are having problems with. This will reregister the wins entry. Usually when this is the problem you continue to get the domain controller not found error even after you log off and back on again.
[This message has been edited by MikeB (edited 01-18-2001).]

Read other 3 answers

Hi all - I have a problem with my domain.

I have 1 domain "europe1" with the PDC in the UK.
I have 2 bdc's for europe1 in the a location in france.

europe1 is the accounts domain and is trusted by lots of resource domains.

The problem is this : Open user manager for domains on either one of the BDC's, it tries to retrive the list of users but gives the error "cannot find a domain controller for this domain".
If I try to retrieve a list of users from any one of the trusting domains it works no problem.

As a test we built a new bdc and it worked with no problems.

Any idea's what is wrong with our original BDC's ??

Thanks in advance

A:Cannot find domain controller for this domain

Have you done the standard what I term Microsoft solutions.

Reapply service pack the BDC's
Apply the latest Network card driver and reapply the service pack.

Only other thing I can think to check is can the BDC's resolve the PDC computer name.

Hope this is some what helpful.


Read other 1 answers

Hi everyone,

This error message is driving me crazy... Please help?

Userenv - " Windows cannot obtain the domain controller name for your
computer network. (An unexpected network error occurred. ). Group Policy processing aborted. "

I have tried everything I can think of, and I'm going out of my mind...

A:Domain Controller error

Is this error coming from the Event Viewer of your DC?

Read other 4 answers

I'm running into a problem with connecting to network drives over a VPN. The common difference is whether or not the computer is part of the domain by default.

1) Computers connecting to VPN using local account on computer: Prompted for a domain login when attempting to use the network drives. Can get in.

2) Computers connecting to VPN using a domain account (but on another network): Unable to connect. Specific error changed based on below info.
A) Computer logged on and connected to an outside network. Never connected to domain network: Can't find folder error.
B) Connects to domain network at some point before connecting to an outside network and using VPN: Might be in use error, attached.

A:VPN Network Shared Drive Error Domain/Non-Domain Differences

Sounds more like the network the VPN connection puts you in has trouble making kerberos connections to domain controllers, but NTLM connections work fine (kerb might be blocked). The errors are likely bogus if you can get #1 to work - if the computer is connected to a domain it's going to want to use Kerb before NTLM, and if the machine still has (what it thinks is) a viable kerb ticket, it's going to try and validate that with a DC (to achieve auth), and if this fails, so does the connection.

This may not actually be the case, of course, but it sure has the symptoms of it.

Read other 1 answers

We have been getting sporadic reports from our users of the error, "The trust relationship between this workstation and the primary domain failed."  The workaround has been to dejoin and rejoin the domain, but it keeps happening and we need a permanent
fix.  We are primarily a laptop shop.
It has been suggested we disable the automatic machine accouint password change on our domain members in GPO.  While this may be a viable option with relatively low security risks, I'd really like to figure out why it's happening and try to
fix it. 
The machines can lose the trust relationship at random.  It can happen overnight, or after going into hibernation.  I've had it happen to me a few times.  The DCs (we have 2) both show error 5722, but one is spitting out a specific Kerberos
error that the other one is not:

While processing an AS request for target service krbtgt, the account kriegesh did not have a suitable key for generating a Kerberos ticket (the missing key has an ID of 2).
The requested etypes : 18. The accounts available etypes : 23  -133  -128  3  1. Changing or resetting the password of kriegesh will generate a proper key.
My main issue is trying to determine why this continues happening and if we can resolve it without disabling the account password.  If that IS our best option, then so be it.  Any
thoughts are welcome.
Thank you very much in advance!  ~Sarah

Read other answers

This must be kind of common as I see a lot on this issue, but unfortunately not much on a fix.
Anyways I'm on a path to MCSA so I need to do labs on Server 2003 from time to time. I use virtual PC 2007 to make virtual machines of XP Clients and an Enterprise Server 2003. Anyways I can't attach clients to the domain, it gives a message that the server can't perform the requested operation for whatever reason. When setting up the domain controller I get this:

Diagnostic Failed
The registration diagnostic has been run 2 times.

Warning: Domain Controller functions like joining a domain, logging onto a domain, and Active Directory replication will not be available until the DNS infrastructure for Active Directory is correctly configured.

The DNS zone authoritative for the domain Nirom.local cannot be updated because it is the DNS root zone. Domain controllers will not send dynamic updates to the DNS root zone. If you want to use this domain name, select 'Install and configure the DNS server on this computer' below and create a delegation for the new DNS zone Nirom.local from the root zone to this DNS server.

For more information, including steps to correct this problem, see Help.

The primary DNS server tested was: a.root-servers.net (

The zone was: . (root)

Domain controllers will not send dynamic updates to the DNS root zone.
Click to expand...

Okay well since I haven't studied the DNS part that much yet how do I do that?... Read more

A:DNS Error on Server 2003 Domain Controller Install

Read other 6 answers

I've setup a windows dual boot system with Windows XP professional and Windows 7 professional x64 on a Dell Optiplex 740. The windows XP was installed on an 80 GB 10K disk and the windows 7 professional x64 partition was setup on an Intel SSD drive. Both installations were done from scratch (no imaging).

Right now The system running windows 7 professional x64 on the SSD is having problems connecting to my Domain controllers (Windows server 2003 x64 sp2 - fully patched). When I first did the install of the operating system and was doing the software installation from our network I didn't have any problems. However After setting up the system for our Developer and moving it about 150 feet down the hall, this windows 7 system has a problem logging on to our network.

The error message I get after trying to login is is Unknown logon Error.

I have tried different network cards, a completely different network port, updating drivers and none of this has resolved my issue. I have removed the system from the domain and re-added it and this worked for roughly 24-36 hours. Then the developer mentioned they were having the same login problems as before.

This issue occurs with the developers credentials as well as a the credentials from a Domain Administrator.

The XP system and windows 7 system are named similarly, but they are still different. Both systems are using the same dns servers. Currently I don't see any error messages on either my domain controller or the windows 7 system.
... Read more

A:Windows 7 connecting to Domain Controller Unknown Login Error

Have you tried working with the lanman server perimeters in the GPO of the Windows 7 machines?

In order for Windows 7 to work with older servers you usually need to adjust the lanman server security settings.

The following settings may help.

Control Panel - Administrative Tools - Local Security Policy

Local Policies - Security Options

Network security: LAN Manager authentication level
Set to Send LM & NTLM responses only

Set the Minimum session security for NTLM SSP
Disable Require 128-bit encryption

Read other 9 answers

Hey hey,

I've been a systems admin for a couple years now and have decided that I want to set up a domain of my own!
Just want to a have a 2-3 computers on it in the house and maybe even set up a VPN in the future just to play around with.

After spending ~10 hours / 3.5 PCs worth of components I gave up and installed Windows Server 2003 R2 as a virtual machine on my already running Windows 7 Ultimate box.
I've now probably spent another 10 hours googling, reading, youtubeing and attempting to configure the server to get .... Anything to connect to the domain!!
At the moment I only have 2 PCs here - my Windows 7 Ultimate machine which is running the virtual server and another PC also running Windows 7 Ultimate.

I configured a DNS server and a Domain Controller through the Server 2003 wizard and I really can't get anything to connect to the domain...
As far as DNS, don't really know a lot about it but I can browse from the other PCs on the network and the server with DNS being set as the servers IP with no alternate...

The domain is called 'virtualdomain.kenno.com but when I try changing from a workgroup to a domain on the both client PCs with the name "VIRTUALSERVER" I get prompted for credentials, I enter credentials which are either correct with Domain Admin privlidges or even random non existant credentials and get the message:

The follwoing error occurred attempting to join the domain "virtualdomain":
The network path was not found.
... Read more

A:Error when joining a domain - network path not found

Welcome to Seven Forums,

Do an experiment - Disable the DHCP from the Server for now and let your router handle the DHCP and DNS, assign DHCP on your Server(s) and Client Computers, now try joining the client computers to the Domain again. Please let us know how it turns out.

Read other 4 answers

Ok here is my situation, I have 2 pc's running Win 2000 and a third running 2000 server, how do I get the 2 machines to join into the domain.....I installed AD and now have a domain called "something.local." does this make sense to anyone? also I am behind a linky router and have given my 2 pc's a static ip of "192.168.x.x" do I have to run a DHCP server on the 2000 server machine? I am completly lost and could use some help....I know Active Directory is not for the timid, maybe I bit off more than I can chew!!!

A:Domain Controller

In control panel, open system, under identification, change it, and add the domain name, apply, and you'll get a message as to whether it was sucessful or not.

Read other 1 answers

Having trouble accessing Active Directory users/computers it times out and says it cannot connect to the domain controller and when I boot up takes forever and on the internet it takes minutes to switch screens.

Using XP Pro and Windows Server 2003. This is happenning on the admin PC. Thanks

A:Domain Controller

Hello & welcome to TSF,

you need to do this to both systems

do you have a Windows Xp cd, not the restore cd's that come with some systems, the cd will have the Windows logo & 3D hollowgram/image on it

if you do not maybe you can barrow one from a friend/family member/co-worker as long as it is the same version that is on your system

if you have (Windows XP Home Ed. sp2 ) then the cd will have to be that / if you have a cd with (Windows XP Home Ed. )you will have to slipstream (SP2 ) onto a disk that you create
this also applies for (SP3)

this also applies to (Windows XP Professsional )


now if you do have the Windows XP cd with sp2 please follow these steps


performing a (sfc) system file checker

It is a scan that checks the core files & dlls of the (os) operating system and replaces them if they are corrupt or missing with the correct original version


#1 then select (run) , then press enter
a window will open
#2 type in ( cmd ) then press enter
another window will open
#3 type in ( sfc )then press enter
another window will open
#4 type in (sfc /purgecache) then enter / your pc will work like crazy / this helps in rebuiding the cache file (notice the space between (sfc & /)
#5 type in (sfc /scannow ) then press enter ( notice the space between the (sfc & / )

now a scan will start , have your... Read more

Read other 1 answers

how many domain controller can be added in windows server 2003

A:domain controller

You will need at least one per domain.

Read other 1 answers

We have over 110 laptop users all logging on using cached domain login information.

Recently I've had a couple ring up saying that they can't log on to their laptops remotely as they get a message saying the domain controller is not available so all I've been able to do is get them to drive all the way on to our Head Office so i can reconnect their computer on to the domain and then get them to log on and then off the domain to create a cache of their logon details.

Any ideas the previous cached information has not allowed them to log on?

I'm guessing it has become corrupt but not sure how.

Read other answers

How do I run a domain network?

A:Domain controller?

Read other 6 answers

I'll be adding a new Domain Controller to our network this evening. It's not currently connected to anything right now, so I need to know if I actually have to join the machine to the domain, or can I just plug it in and bring it up as a new DC on the domain? In other words, do I have to go through the process of going in to Active Directory on the existing DC and actually adding a new computer to the domain and then bring it up as a DC, or does it automatically join when I make it a DC on the network?

IT Intern

A:New Domain Controller

Read other 12 answers

Ok here is my situation, I have 2 pc's running Win 2000 and a third running 2000 server, how do I get the 2 machines to join into the domain.....I installed AD and now have a domain called "something.local." does this make sense to anyone? also I am behind a linky router and have given my 2 pc's a static ip of "192.168.x.x" do I have to run a DHCP server on the 2000 server machine? I am completly lost and could use some help....I know Active Directory is not for the timid, maybe I bit off more than I can chew!!!

A:Domain Controller

You do not have to run DHCP from your server. You could run it from your router, or not at all. The key to getting your Win2k machines onto the domain is that you must build Domain User accounts on your server for them. This server must be configured as a Domain Controller. They must then change their Network Identification to join the Domain and log into the Domain Controller (your server) using the accounts that you have built for them under the Active Directory Groups and Computers area. (Start-->Programs-->Administrative Tools-->Active Directory Users and Computers.

When you boot your Win2k clients, be sure when the logon screen appears, that you use the drop-down box to select your domain not the local computer.

I use my Win 2k server as a Domain Controller and a file/backup server which I have found the most useful role for my small home network.

Hope this helps--


Read other 2 answers

I wants to perform the specific application under domain admin right for domain user account
I have try create shortcut and type:"runas /user:ComputerName\Username /savecred "C:\path\to\file.exe""
Then, I can run it and pop up the Attention. but  the application is appear "APPSCRASH", when press"Yes" 
If I type local / domain administrator account, it can run application normally.
How to fix it? The application is typing of the dead

Read other answers

Hello everyone,

We are running into a somewhat peculiar issue that I have been unable to find any information about and I was hoping someone here could point me in the right direction.

Several of our Windows 7 laptops (We're working on moving to W10) have become unable to change the password for a domain account from the Change a Password screen after hitting CTRL ALT DEL. Usually when someone would select to change their password,
it would take them to the text boxes with the domain\username pre-populated, I'm sure you are familiar.

Recently, when following the same steps, an account selection screen comes up with the option to use a smart card or simply type in the username. While we are working on implementing smart cards, they are not yet in use and in fact should not even
show any options for them yet. After opting to type in a user account, rather than populating the username field with domain\username, the field remains blank with grey text saying "provider\user name" instead. If the user types in their domain\username
and attempts to change the password, they get a generic error stating it is unable to change the password.

Users are still able to use a co-workers machine to change their password from the same screen by substituting the username. Most of the affected machines are from users that work in the same team, even though those same users can change their passwords
elsewhere just fine. It appears to be isolated to specific ... Read more

Read other answers

Currently we are in the middle of a migration project. We are migrating users from child domains to the root domain of one organization.
The user accounts are migrated with powershell using Move-ADObject cmdlet. This works as expected. The SIDHistory attribute is updated correctly.
Recently we received complaints from some *migrated* users - they lost their default/custom file associations. This happens only on Windows 8/Windows 8.1.
What happens:

the user is migrated and logs onher profile loads and everything's preserved (as expected)the user clicks on a .jpeg file (previously associated with program XYZ)OS asks the user to choose a program to open the file withthe user chooses a default program XYZ and the file openswhen the user clicks on a .jpeg file again - OS asks to choose a program again
i.e. the settings are not preserved.

Our investigation shows that it is connected with the UserChoice registry key and the HASH value under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.SomeExt

According to this blog 
the HASH is calculated based on user's SID. But after the migration the user has new SID and the HASH becomes invalid and we hit this:
"However In Win 8, the registry changes are verified by a hash (unique per user and app)  that detects tampering by apps. In the absence of a valid hash, we ignore the default in the registry."
Currently deleting the UserChoice key for all a... Read more

A:File associations are lost when user account is migrated from one domain to another domain (SID changes)

Hello Petar K. Georgiev,
Please check the following article to change the registry key to change back to the default file type associations.
Please note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
Best regards,
Fangzhou CHENPlease remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Read other 2 answers

Here is the scoop ... Two networks connected via frame relay line. Two different PDCs and domain names. Can ping internal IP address, but can not browse through Network Neighborhood. Set up WINS on both and when trying to get them to share info I get Connection was aborted by the remote WINS in the event log. I can see the IP addresses for the remote network through the DHCP manager. Any ideas on what I should do to be able to browse the remote network and also set it up so that I can administer it remotely, would be greatly appreciated.

A:{Advice Offered} - Domain Browsing in a Multi-Domain Environment

Read other 6 answers


i have changed the domain of the computer (from say old.net to new.net).
there is a folder shared on another machine on old.net domain. the user X was able to access it. aftter changing his domain from old.net to new.net he no longer can access that shared folder.
User X has working credentials for both domains.

on accessing it it asks for credentials. upon entering his correct user name in the format (old.net\X) he is not able to access it.

i had exactly same setup with another user Y and he was able to access data .

is there anything that i am missing ?

also accessing that folder first time asked for credentials but now it doesnt asks .. why ? there is nothign in credentials manager.


A:cannot access shared folder after changing domain with old domain cred


Have you removed/re-added the User's credentials (from the PC with shared folder) with the new domain name?
Also, make sure that the shared folder has Everyone permission in the Security Tab.

Read other 1 answers


I hit major problems yesterday when a power surge killed my server (despite ups/surge protection!). We have a small set up of 15 win2k machines and one Windows server 2003 all connected under a domain.

Basically all user machines were unaffected but my only method of getting us up and running was installing a fresh version of 2003 server on a new machine. i followed this guide and configured it to use the same domain as last time (hoping that all the client machines would carry on as they were before the server out). i've managed to set up access to shared drives hosted on the network. That is working.

However i am now having these problems on all client machines

Client machines cannot connect to shared printers from another client machine. - Logging on as an administrator to their machine locally (not domain) you can add and print. Simply changing their policies to admin does not allow them access.
Each machines is still connected to the domain (so it says) but if you take them off and try to put them back on the domain i get this error:the following error occurred attempting to join the domain " ". network path was not found
If somebody can help me out i would be very gratefull. I'm alright with basic networking but have never installed Win server from fresh. I like to think i've just missed a simple checkbox or similar!? I've basically followed the guide and have done little else in way of changes, so you should be able to get a good i... Read more

A:Complete Domain Issue! Shared printers & adding domain

Read other 16 answers

Dear Community,

My company use around 700 desktops and laptops on a domain. our file server has a home share drive that the AD links to and then maps when a user logs onto any machine when using their domain account. my problem when I log onto my normal laptop
it says network name is no longer available. when I log onto another machine it connects and maps normally. all other servers UNC name works normally. I can ping it by DNS and IP and can RDP to it but not see any shares.

Please can you help?

Read other answers


when i add win 7 client machine to a domain i got this error " an attempt to resolve the DNS name of a domain contrller in the domain being joined has failed" how to solve it . plz help

Read other answers

I Have a Windows Server 2003, Windows Vista Home Basic and a Windows 7 (Based on Vista). I just got a Belkin router but i installed and set it up on my Windows 7 PC. Is there any way to make my Server 2003 become the new Domain Controller. I need it to install Ranger for networks.

A:Solved: How do I become a Domain Controller?

Read other 7 answers

Hi all,
I'm having an issue getting a domain controller seeing the internet modem/router box.
The network is laid out as such: internet > modem/router > domain controller > rest of network.
If I connect a computer directly to the modem/router, it works fine. When I connect the DC to it, it doesn't seem to see it.
The default gateway matches so I can't figure out what's going on.

heres the IP details for the machine that's connected directly and working:
Default gateway:

and for the domain controller:
Default Gateway:

Any help would really be appreciated.


Read other answers

Hi All,

My small company is running in a XP workgroup environment. For security needs I am switching over to a windows domain. Our recently engaged IT professional initially pushed back on the domain controller idea - citing the cost in terms of degradation of performance during log in as well as an increase in care and feeding of users. After being informed of the security requirements, he is on board with the domain controller plan. My question to the experts here is: What am i getting myself into running my small bus network (<10 office + 10 classroom systems) in a domain as opposed to workgroup? Will this be an operational headache?

Much thanks!

A:Fear of domain controller

If the business stays small no its not an operational nightmare. In fact I am a domain advocate as there are alot of centralized things you can do on a domain that you can't with workgroups.

I.E. A domain login account allows 1 person to log onto all 20 user PC's instead of having to setup all 20 users at each PC. On top of that password changes if you change a password on the domain it changes it at each station you log in to. Also this allows for ALOT of flexibility if you ever have turnover you simply disable the account in the one spot and the person can't log in anywhere.

As far as longer login times I think thats close to hog wash. In a 20 user environment in 1 building if you have a long log in to your domain your looking at someone who setup a pretty horrid domain controller (or possibly someone who does not know about DNS and Active Directory). Now if this is a domain log in over a WAN yes it can bump up login times but then you need to look at your WAN connections.

Read other 1 answers

When I plugged in my domain controller into the electric supply, it made a high pitched squeaky noise, and the power light lights, but then everything (eg/ fans) turns off - and the power led stays on.

Is my psu dead or something else?


A:Domain Controller's Died =o(

Have you tried testing the power supply on the pc? If you have a spare psu I would say swap it out, if they are the same type like atx or at form factors?

Read other 3 answers

- Windows 2000 Network. PDC has Win2k Server.
- All Win2k computers can connect to the domain w/o problem
- NT 4.0 (SP6a) machine used to connect fine but can't recently.
- Only recent change to the PDC was the installation of SP4.
- I can ping the PDC by IP address but not by name

Stuff I have tried:
- I tried switching it to a workgroup, rebooting, then switching
them back to the domain but now they give "Unable to connect to
the domain controller for this domain. Have your administrator
check your computer account on the domain." The computer account is on the PDC and a member of "Domain Computers"
and "Pre-Windows 2000 Compatible Access"
- I tried unchecking the "Enable LMHOSTS Lookup" check box in
Network\Protocols -> TCP/IP Protocol -> Properties -> WINS Address, as recommended by MSKB Article 271925 but that did not help.
- I tried changing the HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services
\LanManServer\Parameters values for EnableSecuritySignature and RequireSecuritySignature, then restarting Net Logon as recommended by
http://content.techweb.com/winmag/library/1999/0501/sol00074.htm, but that did nothing.
- Lastly I tried what was recommended in MSKB Article 293127 which was:
Change the HKEY_LOCAL_MACHINE\System\CurretnControlSet\COntrol\Lsa
\restrictanonymous DWORD value to 0, but I haven't rebooted yet since I don't want to boot everyone else who is currently on the domain... I am not holding ... Read more

A:NT 4.0 can't connect to domain controller

Read other 8 answers

I am new here and I hope someone will be able to advise me regarding the problem I am having.

I am responsible of a small office network that is based on one domain controller which also works as the DNS.

Yesterday, I was planning to join a new PC to our domain name and usually when I do this I change the administrator's password temporarily to use it on the new PC and then change it back to the original one. (it is a secuitry phobia issue!)

After successful join to the domain I changed the AD administrator password back to the original one and tested it immediately and it worked just fine.

I locked the server and few hours later I wanted to make a change in the AD and I was very surprised that the administrator password is not working anymore.

(Please note that other users passwords haven't change)

My questions here are:

1- Are there any type of (hacking) tools that can be run from a local network pc (which have local administrative privilages) that can hack the domain controller this way and change the administrator's password or harm the domain controller?

2- Could this be a problem/bug from the windows 2003 OS itself?

3- Is there any legitimate way to reset the password in this case?

4- Is the built in windows 2003 firewall reliable and what do you recommened for software secuitry.

This happened once before (about a year ago) and the network was smaller so I finally decided to resintall wndows 2003 and start from scratch. But this time I just w... Read more

A:Problem on my Domain Controller

One aspect of maintaining servers is to create additonal administrator accounts so you can use them to edit/change the default administator account if its profile becomes corrupt or you have issues with passwords.

Q1 not that I am aware of
Q2 doubtful
Q3 use another admin account
Q4 software firewalls are OK but you get better protection from a hardware router/firewall. Not sure what you mean by software security. That is what share and ntfs permissions are about.

Read other 2 answers

I am tryin to add a user to a computer running W2k pro and when I type in the name and domain all I get is an error that says
"the trust relationship between this workstation and the primary domain failed"

This is a new workstation just added to the network, the user I am adding is myself and I have admin rights. For some reason all the users have to be local, I have checked the IP,DNS, and gateway. I can see the computer on the network.

A:Domain Controller does not trust me!

Hi tushkahoma
It seems that although you have local admin rights at the workstation, you may not have domain admin rights in order to join the domain.

Paul V

Read other 2 answers


This is my first post here so I hope it's in the most appropriate area.

I was hoping that someone could answer this question for me.

I'm working on an NT4.0 domain controller and I need to know how to add more than eight workstations to a user account in the "Logon To" dialog.

As deault you can only assign a user account to eight workstations. I'm sure there must be a tweak for this, and most probably in the registry.

Basically I need to create an account that allows my admin guys to administer workstations but not have access to the domain controller with that account. Therefore I am taking the course of allowing them to logon to specific workstations and servers only and I need a lot more than eight!

Any dudes/dudettes out there that have any ideas?




A:NT4.0 Domain Controller tweaking

So you can't create more than 8 local accounts on the workstations that have admin rights? I haven't run into this one before.

Read other 2 answers

I have two servers running NT 4.0 the problem is that the backup domain controller cannot log on to the primary domain controller. I've tried setting trust relationships and I get the "this server is already on the Domain" message.

A:Domain Controller Situation

If you have a Primary and Backup domain controllers in the same domain there is no need to set up a trust.

Trusts are used to define relationships between two seperate domains.

Can you explain in more detail what you are trying to do when you say

"the backup domain controller cannot log on to the primary domain controller"



Read other 3 answers

Hello everyone!
Today I have received a High severity alert for Suspected DCSync attack. The origin of this attack was a workstation that ATP tell us that has it's right private IP and a secondary IP, the one of our DC. How it can be possible? I've investifated on DNS,
on AV client logs, and other auditing tools and everything looks ok. No evidences for any risk on this computer or secondary IP address assigned to this workstation. How it can be possible?
Thank you.

Read other answers