FSLogix will only mount the first 4 Profiles

Lucas MacBeth 1 Reputation point
2021-04-07T14:48:49.933+00:00

I have an issue where FSLogix will only mount the profile for the first 4 users that sign into my RD Session Host. We have had this in place for the past 6 months with no issues and they have only just started.

When the 5th user goes to sign in the user hangs on the Please wait for the FSLogix Apps Services, this eventually times out and the user signs in with a Local Profile.

The Main errors I get in the FSLogix Profile Logs are:

ErrorCode set to 121 - Message: The semaphore timeout period has expired.
AttachVirtualDisk error (The semaphore timeout period has expired.)

If I sign out of a working profile then I can sign in with any other user immediately.

I have already done the following:

  • Fully reinstalled FSLogix Apps
  • Can replicate this issue with all fresh VHDX files.
  • Removed all registry keys under HKEY_LOCAL_MACHINE\SOFTWARE\FSLogix
  • Tried an older version of FSLogix and got the same issue.
FSLogix
FSLogix
A set of solutions that enhance, enable, and simplify non-persistent Windows computing environments and may also be used to create more portable computing sessions when using physical devices.
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  1. Leila Kong 3,691 Reputation points
    2021-04-08T03:19:21.917+00:00

    Hello @Lucas MacBeth ,

    1.Did you set maximum session for the session host as 4?

    2.The following articles may be helpful for your issue:
    (1) https://social.microsoft.com/Forums/Windows/th-TH/4238f04c-28b1-4a96-9714-817b73a7435b/fslogix-eventually-stops-loading-vhds-or-importing-the-registry?forum=FSLogix

    "I disabled the delta disk (rw.vhdx) ,disabled mulit mountof the Profile (so only one rds can Host the Session) and set a logoff of the User after idle time."

    (2) https://knowledgebase.macrium.com/pages/viewpage.action?pageId=7734780
    "The problem is likely to be caused by a file system problem on the source drive that is being imaged.

    Run 'chkdsk c: /r' from a command prompt.
    Note: Replace 'c:' with the drive letter that you are imaging."

    (3) https://learn.microsoft.com/en-us/troubleshoot/windows-server/user-profiles-and-logon/error-sem-timeout-folder-redirection

    Best regards,
    Leila

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