Lost domain connections

I have a MS Server 2008 domain setup. IT appears that around 5:30 - 6pm the users loose connectivity to the server. If they are logged in to an application hosted on the server they loose connection to that app and everything else.
If they log off and back on all is okay.
I am not onsite, I am a consultant for this company. I have also noticed that if I try to RDP to one of their desktops after hours I can not connect, but can during the day.
I did see where the NIC was being controlled by the OS so maybe that was it, not sure yet just did it.

Thanks

NetworkingSwitches / Hubs

Last Comment

tcarollo

8/22/2022 - Mon

Istvan Kalmar

10/5/2009

what show the switch logs?

rsivanandan

10/6/2009

Have you checked if there is a login/logout time policy configured for the domain?

Cheers,
rsivanandan

tcarollo

10/6/2009

ASKER

I tried looking for that policy but did not see it.
Where is it? Server 08

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rsivanandan

10/6/2009

http://technet.microsoft.com/en-us/library/dd861302.aspx

Try the above.

Cheers,
rsivanandan

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tcarollo

10/6/2009

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tcarollo

10/6/2009

ASKER

OK, here is an update from the end user.
Tony,
I left my workstation logged on when I left yesterday; and when I arrived this morning I could not get into the network, but I could go online.
The following error message appeared when I tried to open a mapped drive:
H:\is not accessible. The system detected a possible attempt to compromise security.