Environment: BM3.8sp2 on NW6.5sp2, patched according to Craig Johnson's

Hardware: Dell Poweredge 1650, 1.5G RAM, 2.4GHz Xeon

NICs: 2 x onboard Broadcom, 1 x 3c905x

Scenario: ipflt unloaded and BM up for a few hours with over 100 http
proxy requests

Proxy fails after running a few hours with over 100 http proxy requests.
The BM server fails to ping other PCs. The server pings others when
proxy is unloaded... and fails pinging others when proxy.nlm is reloaded.

Things return to normal when the server is restarted...

Any clue? Anyone encounters similar scenario before?