Computers falling out of domain

[Guest]

I have a couple computers (Windows XP SP 2) that routinely drop out of the
domain. When you attempt to login with a domain account it says that a
domain controller cannot be found. To login you must either use a local
account or unplug the network card and used the cached login. When you
undomain the workstation and put it back in it works fine for awhile. Any
ideas?

 

[Richard G. Harper]

The first thing I'd check would be DNS settings - all clients in a domain
should use only the domain DNS server for name resolution and the domain DNS
server should be using either root hints or a forwarder to resolve names
outside the domain. Research on this topic should begin here:

http://www.microsoft.com/resources/...00/server/reskit/en-us/cnet/cncf_imp_ZZUI.asp

If DNS is properly configured, I'd check both the server and workstation
event logs for failure events at the time of log-on to see if clues can be
garnered from them.

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Richard G. Harper [MVP Shell/User] (e-mail address removed)
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[Guest]

The DNS works great (the best evidence being that it allows me to rejoin the
domain very quickly). In checking the logs I don't see anything out of the
ordinary. This is a very simple domain (1 server). The odd thing is that
only the new XP SP2 machines are doing this. I haven't heard of
compatibility problems with W2K SP4. Any other ideas out there?