I have a Windows 2003 Standard edition server that becomes unreachable lately. It's been fine for almost a year now, but just in the past month the server can't be reached by remote desktop or access any of the shared files on it. The strange thing is that I can ping it when it's in this state. I always have to reboot the computer to get everything working again. The only installed on this server is Exchange 2003 and it's been on there for about a year. I haven't installed anything new on this server and has been sitting in the corner untouched.
I looked in the event logs and unfortunately I have no errors in there to help solve this issue. The only errors I get is when Exchange can't reach the domain controller anymore becuase it becomes in this state. But that is just of the result of the server getting into this state (not a cause). Does anybody know what I should do to help diagnose or fix this problem? I don't know what it could be since it pretty much a vanilla install of Windows and Exchange and doesn't get used by the console. Any ideas?