Hi
I have a single Windows 2012 R2 RDS server, which acts as all the RDS roles, including RD Gateway.
I also have an Windows 2012 R2 IISARR server setup to reverse proxy 443 connections to the server, and have port 3391 open on our firewall to allow UDP connections.
In short, if I connect using an RDP 8 client, I get three connections as expected. One HTTP and two UDP. If I connect using an RDP 7 client, I get one RPC-HTTP connection, again as expected.
The problem is that whereas the RPC-HTTP connection is stable, the HTTP & UDP connections disconnect every 2-5 minutes. The client screen goes black and a Reconnect Attempt 1/20 windows is displayed. Each time though the connection re-establishes itself and the session is not reset.
In the gateway manager, monitoring page, you can witness these connections disconnecting and re-connecting. It's very puzzling. The event logs acknowledge the disconnect, stating reason 0.
On the Windows 8 clients, I've tried the recent hotfix 2897602 and tried turning off Windows Location Services. But that doesn't help.
I've read a lot about UDP and RDP8, with some saying it doesn't work properly and that you should turn it off. However, I have it turned on as I was having problems scrolling PDF files in the remote session, which the UDP connections fixed.
Any help with this would be much appreciated. I've done so much research and spent so much time on it...
Thanks
Andrew