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Windows 2008 server can't ping gateway over time.

Last Modified: 2015-07-01
I have a very strange problem that I can't figure out.

The server has Active directory, DNS, and TS. Please don't get off track by telling me you can't do that. ;) You can.

If I change the servers IP address, Internet comes back and I can ping the gateway once again. If I put it back to the original IP it fails once again and I can't ping the gateway.

So far there are 2 IPs that I can't use any longer as they do not work on the server for some reason. It will work for about a day, then stop, Internal connections are fine, just no gateway access and TS clients can't connect since I can't ping the gateway.

There is no anti-virus software is installed. I turned off the servers firewall. to rule out any conflict.

This is a very difficult problem to diagnose.
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