Windows 2012 server running two virtual servers. First one is a 2012 Server, a DC and file server. The second also 2012, acting as a Terminal Server.
From time to time we get an error when a user is logging in that remote desktop services is busy. Try again later. Problem is it never frees up and eventually all the sessions on the Terminal Server grind to a halt locking up all the users. Attempting to access the TS or DC is useless as we get the same error. We also will get just a black screen or the same error when trying to log into the host server. Ultimately only shutting down the host resolves the issue.
Where should I be looking to find the cause of this issue? Researching I find numerous references to the issue for a 2008 server and a wide array of potential reasons. I found very few for a 2012 system.
For the most part the only software running on the TS is Quickbooks Enterprise and an Office suite.