I have a windows 2000 server that is dedicated to terminal server use for several years without any issues. Suddenly we cannot resolve ANY host or domain names. We can ping internal and external ip addresses wothout problem. I have checked the system for ad/spyware applications and it looks clean (used adaware, hijack this & spybot). I also ran winsockfix and netsh commands to reset winsock. Still no luck.
With this problem our users cannot use the internet or Outlook for exchange server access.
I am at a loss what to do next. I'll be looking forward to you assistnce.