Windows 2012 | Sessão RDP instáveis

Aconteceu-me que ao aceder a um servidor via RDP, a sessão estava sempre a cair. A Microsoft começou a usar UDP nas ligações remotas e como este protocolo estava bloqueado na rede, estas ligações iam abaixo.

Resolvi desativando o uso do UDP na Local Group Policy:

Group Policy:
Local Computer Policy
Computer Configuration
Administrative Templates
Windows Components
Remote Desktop Services
Remote Desktop Connection Client
Turn Off UDP On Client > Enabled

Group Policy:
Local Computer Policy
Computer Configuration
Administrative Templates
Windows Components
Remote Desktop Services
Remote Desktop Session Host
Connections 
RDP transport protocols > Use only TCP

Fonte:

https://social.technet.microsoft.com/Forums/windows/en-US/ea63f6a8-67c8-4cf4-925c-20c5aa2330c1/windows-2012-r2-freezes-every-2-3-minutes-and-reconnects-the-rdp-session?forum=winserverTS

https://support.microsoft.com/pt-pt/help/2989039/rdp-session-is-unstable-when-it-uses-udp-in-windows-8.1-or-windows-server-2012-r2

https://social.technet.microsoft.com/Forums/windowsserver/en-US/bd96e1a9-81ec-4306-bacc-4cff442d30c8/rds-2012-http-udp-gateway-connections-reset?forum=winserverTS