Lose authentication to server after a while

[Gary]

I have one server which was upgraded from NT4 to Windows 2000 with active
directory installed. I put in a new server with Windows 2000. When I moved
SQL Server from the old server to new server, I also installed Active
Directory with the wizard. Everything seemed to work ok. SQL Server works
fine no matter what.

It seems that since I installed those two (and uninstalled SQL Server from
the old server which is our primary domain controller), if you don't have
regular activity between yourself and the servers, you will somehow lose
authentication to it.

For example, I log on in the morning, and everything connects fine. I can
see connect to any share I want. An hour later, if I don't do anything in
any of the shares for a while, when I try to access it again, it takes
forever to come up. And when it finally does, it prompts me to log in. It
won't accept my login, I will have to use an alternative. I typically use
the administrator account. This seem to happen with both servers...and the
one server alone used to work fine.

I'm attributing this all to Active Directory some how. I feel I didn't get
the two servers working together somehow. I don't know a ton about Active
Directory. I installed it initially becuase I thought we were going to move
the Exchange server to the new server also. But we aren't.

Does anyone have any ideas on troubleshooting my problem. It's inconvenient
for all the users to have to re-login every time they need to access a
network share after they've been dormant for a while.

Thanks,
Gary

 

[Gary]

I forgot to mention the clients, I feel like the affected clients are only
XP machines. I don't recall anyone complaining that doesn't have XP Pro.

I do have the latest service packs and critical updates applied to the
machine.

As for the DNS...I don't know a ton about it. I'll look up some articles on
Microsoft's site and see what I can do.

Gary