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Celtboy
12-24-2004, 12:19 AM
Scenario:

Machine A can ping out just fine.
Machine A CANNOT ping the proxy server (located at remote site).
Machine A CAN ping and traceroute other machines located in same vlan as proxy, and same physical site as proxy.

Traceroutes from Machine A die just before they hit the Proxy machine.
Machine B can ping proxy just fine.
Cable from machine B, plugged into Machine A = still no ping proxy.

There are no firewalls on Machine A. (XP SP1).

Seems to be sporradic. Machine A can ping for a while...then suddenly...it cannot.

DNS/Wins resolves correctly. Same regardless of pinging/tracerouting by ip or name.


Summary:
Machine can sometimes not access a remote machine, yet can access machines right beside it all the time. Does not seem to be cable or ip address dependant.

Corrupt arp caching? Evil practical joke? Any ideas?

-Celt

sage45
12-24-2004, 12:38 AM
You might try these three articles...

http://support.microsoft.com/kb/299357

http://support.microsoft.com/kb/314067

http://support.microsoft.com/default.aspx?scid=kb;en-us;314053

Celtboy
12-24-2004, 04:54 PM
Thanks, sage! I'll try some of the suggestions when I return to work on Monday...provided the problem starts up again...

-Celt