Symptom

RDP session with IGEL IZ1 RFX client to Microsoft Windows Server 2012/2012 R2 does not support RemoteFX 7 (Calista Codec) resulting in low session performance.

Problem

RemoteFX 7 (Calista Codec) is not active on the server.

Solution

Activate RemoteFX 7 (Calista Codec) on Microsoft Windows Server:

  1. Change following parameters of your group policy (either local or as domain policy):
    1. Go to Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Remote Session Environment
    2. Enable Limit maximum Color Depth
    3. Set Color Depth = Client Compatible
    4. Enable RemoteFX encoding for RemoteFX client designed for Windows Server 2008 R2 SP1
  2. In the thin client's setup (or UMS profile) enable Sessions > RDP > RDP Global > Performance > RemoteFX


    Make sure your server provides sufficient amount of RAM.