I have a terminal server running Windows Server 2008 R2 Standard and there is strange issue that I cannot connect to the server via RDP when I try to do this for the first time, but after first attempt fails, and I try one more time - session can be established and runs smoothly.
There were errors in event viewer like these:
EventID 56 description: The Terminal Server security layer detected an error in the protocol stream and has disconnected the client. Client IP: www.xxx.yyy.zzz EventID 50 description: The RDP protocol component X.224 detected an error in the protocol stream and has disconnected the client.
which were fixed by disabling some of the advanced features for TCP, described here.
The server is virtual vmware server and not joined to the domain. Has anybody experienced something like this? Any ideas what maybe wrong?
UPD1: I also tried to change RDP-Tcp settings in Remote Desktop Session Host Configuration console on Network Adapters tab specifying exact adapter to use, but this had no effect.