Client computers gets disconnected from the Server

[shalskedar]

We are using Microsoft Windows Small Business Server.
Operating System:Microsoft Windows Xp Professional
version 2002
Service Pack3
My query is some computers automatically gets disconnected after 5.30 pm..
We need to restart the system to get connected to the Server..
For the server settings there is no such scheduler set to such specific time for which some of the computers automatically gets disconnected.

Can anyone Plz help me out with some solution so that the computers do not get disconnected from the Server

[jonathan184]

what does your event log say around that timeframe? do you have some sort of network monitor to see if your network is dropping traffic. I would have some sort of netowrk program running or have the cmd line window open with the ping commmand running repeatly then around the time the problem is happening see if you get timeouts if you do then it is your network. I would rule this out first in my opinion.