We have a server running Small Business Server Essentials 2011. We keep losing network connection and internet to the server about every 15 minutes.
The only thing that fixes the issue is to reboot the server and then it will lose connection again in about 15 minutes. This started with rebooting and then it would be a few days but now its to every 15 minutes.
We restart DNS and that does not fix issues.
What can we do to troubleshoot this issue?