We are running RDS on a Windows 2012 R2 server. RDP connections hang at a black screen every couple of days (approximately 7-10 days) and can only be resolved by rebooting the server (I have configured a scheduled task to do this every night as we have a lot of users connecting to the servers remotely).
This seems to be a known issue and pressing CTRL+ALT+END, Cancel seems to bring up the login screen again but is only a workaround. Does anyone know of a permanent fix?