I am having an issue with a domain controller not working at a clients site.
The setup is 1 Physical server running Two VM's
SBS2011 running Exchange, and Active directory. This is the Domain Controller.
Server 2012 Running Remote Desktop.
A few times now I have not been about to log into the 2012 server. Getting the message.
"The Domain controller is not available at this time"
Upon restarting the SBS server I can log in without an issue however this seems to be the only fix.
I am unsure where to start, I can only assume this is a DNS issue.
Any help would be most appreciated.