Why does the RDP connection keep dropping?

Question

macOS

Good day.
We use a terminal server on Windows Server 2003 R2.
When connecting via RDP from workstations on Mac OS X using the official RDP client from Microsoft, as well as from an iPad using PocketCloud and the like, the following happens: when the picture on the screen changes abruptly (for example, when opening a fullscreen application), RDP -Session immediately breaks, you have to connect again. At the same time, users with Windows do not have such problems.
Tell me, what could be the matter?
Thanks in advance for your replies.
PS I apologize for a certain confusion of the presentation of the question, it's still one in the morning, or how much there.

Answer 1

Try CoRD under Mac OS X

Answer 2

Please tell me, if you are trying to take control of an existing session (windows-windows) from the terminal server Is the session interrupted or not?.. You should test with the highest possible screen resolution of the client and administrator.
If it is interrupted, then this is a small software bug. It is solved through group policies or policies of the local terminal server. Terminal server section, performance optimization. If the problem exists, write, I'll look specifically where in the GP, now at home, there is no console.

Answer 3

An implementation bug, what can I say.

Answer 4

Update the terminal server, this is due to authentication, in early versions of the terminal in R2 there is an annoying bug with authentication (certificates and other slag), or turn off authentication in the client and server.

Answer 5

See if you have any problems with the MTU on the network (whether pings are more than 1500 bytes), try lowering the MTU on the server, look with a sniffer (wireshark, for example), if there are any loops, maybe the packets arrive twice. In general, the sniffer in such cases allows you to understand what is happening.