LogonUI.exe - Sessions Disconnected

[Oliver Knights1709159340]

Hello,

 

We are seeing users that are disconnected with 5 processes. When we kill the Windows (Logon User Interface Host) process the sessions will log off. Does anyone know how to resolve this? Users keep getting locked out because they have hung sessions, sometimes multiple sessions on the same server.

 

We are running V7.14

 

[Jamie Breedlove1709152539]

On 1/20/2022 at 8:44 AM, Robert.admin robert.adminossur.onmicros said:

 We are also having this issue since upgrade to 21.12 . As a temporary solution we created a script the kills the Logonui.exe process for all our servers/users as soon as its started and it does not affect users that are logged on or normally disconnected . But in the case where the sessions are stuck it immediate logs of that sessions so users are not getting stuck anymore 

Interesting workaround.  How are you launching the script?

[Jens Strohschnitter1709152492]

9 hours ago, tony roberts1709152250 said:

Is the correct path to the DLL C:\Program Files(x86)\Citrix\System32 ?

 

The support guy from Citrix told me it was C:\Program Files\Citrix\HDX\bin but that doesn't exist on our system. Can anyone confirm thanks.

For 19.12 CU4 the path is
C:\Program Files (x86)\Citrix\System32

For 2109, 2112 the path is
C:\Program Files\Citrix\HDX\bin

Both for 64bit installations. For 32bit I can't confirm.

[tony roberts1709152250]

1 hour ago, Jens Strohschnitter1709152492 said:

For 19.12 CU4 the path is
C:\Program Files (x86)\Citrix\System32

For 2109, 2112 the path is
C:\Program Files\Citrix\HDX\bin

Both for 64bit installations. For 32bit I can't confirm.

Brilliant Thankyou

[Jens Ole Hald]

Any able to share the hotfix for VDA2109? We have the same issue but so far no luck from support.

 

to bsp@thisted.dk

 

Thanks!

 

 

Edited January 26, 2022 by Jens Ole Hald
add email

[David Lindstroumlm]

26 minutes ago, Jens Ole Hald said:

Any able to share the hotfix for VDA2109? We have the same issue but so far no luck from support.

 

Thanks!

Same here, if anyone has it. Please drop a mail to david.lindstrom@arlaplast.com 

[Robert.admin robert.adminossur.onmicros]

12 hours ago, Jamie Breedlove1709152539 said:

Interesting workaround.  How are you launching the script?

We use ControlUp automation that basically runs a Taskkill script every time the it sees the process start and kills it immediately.  its a dirty solution but it works . jn our environment its does this a round 10k times a day  ? and it does not affect other users 

[Hardy Schoewerling]

I've also opened a support case today. Apparently it needs more mass for something to move. I have the problems in several customer environments. A rollback to 1912 CU3 works. This process has been discussed here for almost two years now, I wonder why the problem keeps coming up.

[Jens Strohschnitter1709152492]

Citrix has published a KB https://support.citrix.com/article/CTX338807 for this problem. It was solved for several Citrix editions (2109, 2112, 19.12 CU4) by replacing the StatUI.dll. 

[Hardy Schoewerling]

18 minutes ago, Jens Strohschnitter1709152492 said:

Citrix has published a KB https://support.citrix.com/article/CTX338807 for this problem. It was solved for several Citrix editions (2109, 2112, 19.12 CU4) by replacing the StatUI.dll. 

Thank you Jens, this was exactly, why i opened that case. I hope to get that .dll and will report if it's a successful solution.

[Jens Strohschnitter1709152492]

17 minutes ago, Robert.admin robert.adminossur.onmicros said:

in the support process from Citrix i received 3 Statui.dll files where the first one did not work (Version 7.24.4000.1) and after that we got the 2 version to test. The version that is working for us is the 7.32.0.3 version

7.32.0.3 is for CVAD 2112 / 7.24.4000.1 is for 19.12 CU4
But on Win10 OS it does not exists any kind of StatUI.dll. It's only for Server 20xx editions.

[Robert.admin robert.adminossur.onmicros]

3 minutes ago, Jens Strohschnitter1709152492 said:

7.32.0.3 is for CVAD 2112 / 7.24.4000.1 is for 19.12 CU4
But on Win10 OS it does not exists any kind of StatUI.dll. It's only for Server 20xx editions.

Yes that makes sense we are running 2112 . 

[Jens Strohschnitter1709152492]

7 minutes ago, Robert.admin robert.adminossur.onmicros said:

Yes that makes sense we are running 2112 . 

Just to confirm - it's Server 20xx not Win10 single OS ?

[Matthew Nation]

2 hours ago, Robert.admin robert.adminossur.onmicros said:

in the support process from Citrix i received 3 Statui.dll files where the first one did not work (Version 7.24.4000.1) and after that we got the 2 version to test. The version that is working for us is the 7.32.0.3 version

The DLL exists on our Win10 multi-session VDAs

[Mark Boesveld1709157761]

After updating from 1912CU3 to 1912CU4 we experience the same issue on our Win2019 (1809) VDA's. Users are disconnected at logon and are unable to reconnect.
The same 5 processes are visisble (+ an additional 2 for graphics, "NVIDIA Container" and "Citrix Graphics Engine" )
I've just opened a case with Citrix hoping te receive the prvate fix .dll.
For the moment we've rolled our VDA's back to 1912CU3.

[Hardy Schoewerling]

I've got the dll from Citrix Support. Tonight I'm moving the first 8 servers, then we'll see more. I have the 7.24.400.1 DLL for the 1912/4000 VDA. I will post the results here.

[Srvb Apeldoorn]

The private fix is now available for download on https://support.citrix.com/article/CTX338807.
It includes StatUi.dll version 7.24.4000.2 for 1912CU4, i'm going to build a new vdisk and test.

[Rolf Ruszlig]

Hi Guys,

 

Also facing this Issue on 1912 CU4.

Can someone please provide the dll?

Thank You.

 

Regards

Rolf

[Daniel Theuerkauff1709154232]

I have seen, that the fix for CU4 that you can download now at CTX338807 has a newer version of the DLL (7.24.4000.2) than the one i received with our support ticket last week which was version 7.24.4000.1. Maybe that's worth mentioning for those of us who allready received this on the same way.

[Jens Strohschnitter1709152492]

6 minutes ago, Daniel Theuerkauff1709154232 said:

I have seen, that the fix for CU4 that you can download now at CTX338807 has a newer version of the DLL (7.24.4000.2) than the one i received with our support ticket last week which was version 7.24.4000.1. Maybe that's worth mentioning for soe of us who allready received this on the same way.

Since we've replaced the dll from weeks ago, we've had no issues (only randomly disconnections, which we think came from unstable homeoffice-internet). We now replaced the dll with the newer one and will see if it works too. Thnaks @mark for sharing 

[Hardy Schoewerling]

I Installed the fix 7.24.4000.2 from the download at CTX338807 on Monday evening and haven't seen any problems since, it seems to be working. Will keep watching.

[Olivier de Sainte Marie]

Fix 7.24.4000.2 didn't help for me.

We use provisionned VDA 1912 LTSR CU4 / Windows 2019

I am now thinking of rolling back to CU3.

[Matthew Nation]

Still working this issue with Citrix support for 2112 on Win10 21H2 multi-session. Today engineer asked us to implement the following reg key:

 

[HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\Citrix Virtual Desktop Agent]
"DisableLogonUISuppression"=dword:00000001

 

Are any of you on Win10 multi-session? 

[Mark Boesveld1709157761]

We've build new Win2019 vdisks with StatUi.dll (version 7.24.4000.2 for 1912CU4)  for our testing and acceptance environment. It's been running ok for the past two days.
I'll probably implement it in production next week.

[Daniel Theuerkauff1709154232]

We have version 7.24.4000.2 for 1912CU4 now running on our Server 2016 environment for some days. We still have the issue, but on a lower frequency. so i would say, it helps a little bit. We also added a script on the servers which runs as scheduled task every 5 minutes and tries to kill (tried 'stop-proccess' cmdlet and 'taskkill') every logonui.exe which is older than 1 minute (similar to the one from Joe Robinsons post). We can see in the logfile of the script, that when the issue occurs several logonui.exe proccess show up and the script  tries on its next schedule to end them. Unfortunatley, the proccess can't be killed for about 30 minutes. After that, the taskkill command succeeds and ends the proccesses. after that, we can logon remotely with RDP on the server again. But we also encountered this "30-minute-phase" before we implemented the patch (with the original StatUi.dll) and the script.

[Gerald Koumlrber]

we have been using the dll provided with the fix for some days in production now and havent had any fslogix login errors or stale disconnected sessions anymore. running 2112 and latest fslogix