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Exchange Server 2003 Quits Responding  w/ Event ID 8250

Posted on 2005-03-16
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Last Modified: 2008-01-16
I have experienced this problem with our server for quite some time. The server is currently running W2K Server SP4 with Exchange 03 SP1. The Exchange 03 was an upgrade from Exchange 2000. This problem has persisited in both versions. I have every update and patch that I'm aware of installed. Spuratically, my server clients machines will loose their connection to Exchange for no apparent reason. When I physically go to the server, it appears that all is working normally. I can browse the network etc. and my resources are running in an acceptable limit. Once I reboot the server all is well once more and the clients can connect without any diffiuclty. My Exchange server isn't a DC. I'm not seeing any errors on my Active Directory to cause this. It as though the NIC card became uplugged but I'm on my second NIC that hasn't remedied the situation as I had hoped. The following errors occur while the strange behavior takes place. All I've read on the errors don't apply to my case.

Source: MSExchangeAL
Category: Service Control
Event ID: 8250
The Win32 API call 'DSGetDCNameW' returned error code (0x54b) The specified domain either does not exist or could not be contacted. The service could not be initialized. Make sure the operating system was installed properly.

Source: MSExchangeDSAccess
Category: Topology
Event ID: 2102
Process MAD.EXE (PID=2896). All Domain Controller Servers are not responding.
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Question by:Danstr1
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Sembee earned 750 total points
ID: 13560108
If the problem existed in the previous install then upgrading the Exchange version would have only caused further difficulties. I don't upgrade anything on a server - certainly not Exchange. The data is swung out to another machine so that original can be rebuilt. You get a server that is a lot happier that way.

Both messages basically boil down to the same problem - the server is having difficulties communicating with the domain.

Standard check first.
The server should be pointing to domain controllers ONLY for DNS. Furthermore at least one of those DCs must also be a global catalog. There should be no external DNS servers in the core server network configuration.

Next.
I would install the support tools from the Windows 2000 CD-ROM and use those to test the domain connectivity. When the system has failed, repeat the tests before you reboot. I know that users will be screaming at you to get email back, but make them wait as you need to run the tests while the server is down to see whether the results are different.

Simon.
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