I have been plaqued by this 4319 error. I have tried everything in the experts exchange and on the Microsoft Support site to no avail. I can't seem to get rid of this error no matter what. We are running Windows Server 2000 SP4. There are 6 nic cards on the server each with their own static IP's. We also have a proxy server for our VPN with 2 nic cards and their own static IPs as well. The error is coming up every 10 - 15 seconds. I'm new to configuring a server, so laymens terms would suit me fine. Just ask if Any further info is needed to help resolve this issue. HELP!!