Hi,
Are you using COM ? KeepAlive ?

Are there any entries in the Event logs of the Server or Workstations.

>Hi Neil:
>
>Thanks for you reply.
>I tried diabling autodisconnect (ran the command and it said "done").
>
>It still happened all the workstations, except 5, got disconnected from the network at once.
>5 stayed connected. Strange ...?
>
>Thanks for your time though :o)
>
>Mal
>
>>Hi,
>>Disable autodisconnect http://support.microsoft.com/default.aspx?scid=kb;en-us;297684&Product=win2000
>>
>>>HI:
>>>
>>>I have 20 workstations connected to my Windows Server 2003 server.
>>>
>>>If I leave a workstation connected buy idle for ... 1 hour, the workstation geta disconnected from the network. I would have to reboot the workstation in order to use the workstation on the LAN.
>>>
>>>The other problem I'm having is: At about 11:00 PM every night, all of the workstations gets cut off from the network. Again, I'd have to reboot all of the workstations to connect into the LAN.
>>>
>>>I do not have any restrcitions as "hours of use" on any of the workstations.
>>>
>>>I there some where in Server 2003 that I can check to see if the server is logging any of the workstations off?
>>>
>>>TIA
>>>
>>>Mal