I have 2 Windows XP systems which inexplicably have closed off all inbound and outboard http/https and ftp traffic.
Their internal windows firewalls are forced off by domain security policy, and the other 30 systems on the domain are not having an issue.
I can ping thier def. gateway, and any other system on the network. Can't ping anything outside. DNS settings appear correct, and the DNS settings are duplicated on 28 other systems without error.
On one system last night we were able to do a system restore to achieve internet functionality, and in our elation we forgot to disable the patch server.. the system updated, and now we're back at square one, without internet connectivity, and now without the ability to do a system restore.
I've dissected the domain security policies, I've stripped off every program that might be getting in the way of system restore, I've done a winsock repair/reset, and i've gone through every element of the local network connection settings I could get my hands on.
I'm at my wits end.