Hello everyone,

I am IT system engineer and I have issues with a FSLogix Remote Desktop deployment.
Let me introduce the setup.
We currently use a storage server where all our FSLogix user profiles are stored (obviously using network UNC path) and 4 Remote Desktop servers where all my users are connecting through a Remote Desktop Gateway dedicated server.

Every server is using Microsoft Windows Server 2025 Standard operating system.

The setup count about 90 users.

Everyday, some users are contacting us because their Remote Desktop session is stuck on "Please wait for FSLogix app service" and we are struggling to find a real solution, or even a workaround.

When this problem happens, we try to disconnect user from RDS where the session is connected, but it becomes a ghost session (no username in the task manager and 4 system processes remaining, unable to kill them - query user in CMD doesn't see this ghost session). We also close every linked open files in the storage server (via computer manager), delete the metadata which is next to the VHDx, and clean the user session in SQL Broker database via SQL command... Sometimes it works, but most of the time the user needs to wait like 30 minutes (and the problem is resolved by a random timeout I don't know where).

As far as I know, we are using best practices found in multiple forums or official documentation. In our GPO, we tried to disable VHDx compression at logoff, we do not use ODFC containers, we clean invalid session, we use the Redirect.xml file, we updated FSLogix to latest version, ... To be honest, we tried a lot of things without any real improvements.

Last thing we did is to disable forced SMB encryption in registry on client (Lanmanworkstation) side because my opinion was that a possible SMB slowness could be the main cause of this FSLogix issue (miscommunication between storage server and RDS server).

Every performance graph doesn't show any lack of ressource...

We have another Remote Desktop with FSLogix deployment with same topology (RDSGW - STORAGE - RDS) on Windows Server 2022 Standard OS for this case, which is not showing any issues.

By any chance, is someone able to help me ?

Many thanks in advance !