Hi,
We have two Windows Server 2012 R2 RDS servers and one session broker since about a year back with about 30 users daily is working on.
Since yesterday four users on both servers have experienced a black screen while logging in through RDP, and my first though was a client side problem with persistent bitmap cache, but this is not the case. I've tried the following without success:
- Disable persistent bitmap cache.
- Change RDP client colors, resolutions and performance settings.
- Using multiple client computers to connect from.
- Force logoff the user and reconnect.
- Ctrl + Alt + End does nothing, if I repeatedly press this with a combination of escape and mouse clicks, the picture sometimes appears. But almost half the screen is still a black strip, and any windows places her can not be seen. Opening up Metro start menu also makes the screen completely black.
- Removing the synchronized user profile on the RDS session host and let it synchronize the next logon.
- Change Windows theme on the RDS server.
What seems to work is making the user domain administrator and connecting with mstsc /admin, after doing this it continue working without these permissions and the console session.
No changes have been made the last weeks on the servers, and it has been working before. The event log gives me no information what so ever.
What can I do more to find the cause of this, and solve it permanently? I fear more users will call regarding this during the day.
Thanks.