Windows 2008 R2 VM Servers Problems with SEP 11.7101.1056

Has anyone had issues with Windows Servers 2008 R2 in a VM setting.

We have a number of DC's. that after a reboot, you cannot communicate nor RDP into the Servers. They have to be rebooted.

Also have a few SQL Servers on the Same OS with the same type of issue. On the SQL Servers, MS said that it was SEP 11 causing the issue.

We have either AV only or AV and NTP on our Servers?

Any suggestions would be appreciated before I take this to Symantec Support.

Only Correlation is Windows 2008 R2

Thanks,