I have two machines on my network, both running XP SP2. I recently installed Symantec Client Firewall on one of the machines. Now, on that machine I'm getting an event 4321
The name "WORKGROUP :1d" could not be registered on the Interface with IP address 192.168.1.100. The machine with the IP address 192.168.1.102 did not allow the name to be claimed by this machine.
On the other machine, I was getting an event 8002 but then I made it a trusted IP in the Symantec firewall.
Both machines have static IPs and are wired through a Linksys BEFSX41 router.