The error:
The task you are trying to do can't be completed because Remote
Desktop Services is currently busy. Please try again in a few minutes. Other users should still be able to log on.
Well-documented for win2008R2, but the error is related to.. Win
2012R2
No Gateway, no Broker.. only a single WIn2012R2 RDS Server, all
users connected using TCP/3389
Running on amazon EC2, accessible by VPN IPSec, 32 GB of RAM, less
than 20 users.
There´s no pattern, even users with 200MB of RAM in use by the session
(as seen in task manager) but also user with 1 GB of RAM used. Users with a few proccess opned, but also users with more than 20 process opened. SOmetimes happens with users logged on for a few minutes or users logged on for a few days.
Plenty of RAM available, full of resources in OS
Even if the users waits for many hours, the system is still busy.
All RDP clients running WIndows 7 PLUS the latest RDC 8.1 update
There is no disconnection timeout, users could be connected as much
as they want. Users runs reports that can take many hours to complete, so a timeout will disturb the user´s workday
What i´ve being doing: I open the task manager and i force
LOGOFF the user, after less than 30 seconds the user sessio disappear from task manager and the user could connect again