Connection problems

[SQUASHJUNKIE]

I have a small network setup with a win 2003 as a DC, and it also acts as a proxy server.

The clients on the network after a certain time get disconnected from the network resources, no access to shared drives, although access through the proxy is ok.
Once the client is disconnected I have tried start->run-> \\[servername] and i get prompted for a username and pass. However the user on the w/s is already part of the domain admins (???)
Sometimes the network resources connect again, other times I get the message that "MULTIPLE CONNECTIONS TO A SERVER OR SHARED RESOURCE BY THE SAME USER, USING MORE THAN ONE USER NAME" etc

Tis is becoming really annoying.....can anyone please help??

Thx

 

[MikeBatters]

How small is small?

Is the server SBS or proper 2003 Server?

Mike

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Remember - There is always another way..........

 

[SQUASHJUNKIE]

OK, sorry I forgot to be more specific.

Network has 5 w/s all win xp sp2 pro.
Internal Network range 192.168.0.1 -> 192.168.0.100
Wireless Access Point fixed ip @ 192.168.0.100 (dhcp switched off)
DC is Win 2003 Enterprise, DHCP, DNS and Active Dir switched on, 2 NICs, also acting as proxy server.
1st NIC - Internal: Fixed IP 192.168.0.1
2nd NIC - External to ADSL modem: Fixed IP 10.0.0.150

DHCP service :
Address Pool - 192.168.0.10 -> 192.168.0.50
Exclusions - 192.168.0.100 (for wireless point)
scope Options 003 Router = 192.168.0.1
006 DNS Server = 192.168.0.1

DNS Forward + Reverse zones configured

I also have an Event ID 40961 in the system log, this always seems to point to a reverse DNS zone not being configured, but I cant seem to find what the problem is. The event happens every hour, although the clients seems to disconnect on a less regular basis.

Any pointers would be greatly appreciated.