For some reason, at random, among 20 PCs on my network, in the morning or during the day, the network connection stops responding for both intranet and internet communications.
The only solution thus far is to remove the NIC from the Device Manager, reboot the PC, and let Windows XP Pro find the network card and reinstall it.
I replaced the network switch with a 10/100 Linksys 48 port switch - SRW248G4. It didn't help with the problem, but the pc's are faster to download from the web.
I have a Novell NetWare 4.11 Server, an Avaya Phone tracking Server, Covad Connectivity 1010 and Covad Netopia 4622-XL-T T1 Router, and the company run's a security software called St. Bernard.
When I replaced the switch I had to reboot the Netopia and Covad devices in order for the pc's to be able to connect to the network and internet, but this action did not resolve the Network Connection freezes...
Any thoughts would be greatly appreciated.