when I was brought in to look at it the problem was slightly different.
the network is simple: 1 server 2003 Standard doing file-serve, 1 linux box as a firewall/gateway (ADSL), 7 client PCs (windows 2000 & XP Pro), on 100 MBit UTP.
The clients were locking up occasionally while navigating the server folders.
I found that there were only 5 CALS and the licensing service was diasabled. So I started the service, bought 5 more and installed them - found that the licensing mode is per-server. So now 10 per-server licensed, 7 used.
Now the clients are locking up for up to 3 minutes several times daily when an app. 'looks' at the drives ( such as opening an app that references files on the server or opening a save-as dialog )- whcih includes drives mapped to the server. . There are no event log entries that correspond to these incidents.
what should I do?