For two days in a row the NIC on one our 6.5 servers has stopped working.
The server looses contact with all other servers. It can't ping or be
pinged. HTTP, FTP, NCP all stop working. There are no errors on the
console or in conlog. Reinitializing the NIC has no affect. The only
thing that works is to down the server - both times I powered off the
server after downing the server. Any suggestions on trouble shooting this?