I have been having a problem with a Windows 2008 R2 Server (with SP1). This is the only server/DC. For the past two nights the server has become inaccessible by Remote Desktop, LogMeIn, file share access is sporadic, and users are unable to login to their computer (No Domain Controller available to process their logon). The server is accessible if you are in front of it and requires a restart and then everything works fine. I am able to ping it while the problem is occurring.
Part of the issue of troubleshooting this is it is for a client I do very occasional work for and am not on site and need to fix this remotely if possible.
The server is rampant with these errors from the time the server issues start and a restart.
Event 1206: Active Directory Web Services was unable to determine if the computer is a global catalog server. (This is the very first error when this problem starts)
4015: The DNS server has encountered a critical error from the Active Directory.
Check that the Active Directory is functioning properly. The extended error debug
information (which may be empty) is "". The event data contains the error.
1204: The DFS Replication service failed to contact domain controller to access
configuration information. The service will continue to replicate using previously
downloaded configuration and will try again during the next configuration polling
cycle, which will occur in 60 minutes. This event can be caused by TCP/IP
connectivity, firewall, Active Directory Domain Services, or DNS issues.
Event 2008: Internal error: The security descriptor propagation task encountered an error while processing the following object. The propagation of security descriptors may not be possible until the problem is corrected.
Event 4000: The DNS server was unable to open Active Directory. This DNS server is configured to obtain and use information from the directory for this zone and is unable to load the zone without it. Check that the Active Directory is functioning properly and reload the zone. The event data is the error code.
Event 1006: The processing of Group Policy failed. Windows could not authenticate to the Active Directory service on a domain controller. (LDAP Bind function call failed). Look in the details tab for error code and description.
The only thing that has changed on the server is the Anti-Virus. They were running MSE on it. The got a subscription to AVG Cloud Care and we installed that on the server on Sunday. Monday night was the first time this issue occurred, followed again Tuesday night.
All network configuration looks correct.
I’m uninstalling AVG as I type this to see if that is the cause of the issue.
This seems to be a network related issue. Perhaps a faulty NIC, or maybe a driver update is needed (haven’t had a chance to try this yet). The server is only a year old. It is a Dell PowerEdge 710 with two Intel Xeon 2.4ghz and 24gb of RAM.
I found another thread on Spiceworks with a very similar issue: http:/
I’ve tried to install the hotfix suggested in this thread but “This hotfix is not applicable to this computer.” Also the person who started that thread never posted back if it worked or not!
Any other thoughts of things to check. Have you had a similar issue? I plan to dig into this some more tonight.
Thanks in advance for any advice!