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October 29th, 2025 12:35
Connection issue with ThinOS connecting to AVD
With ThinOS9 and ThinOS10 we have trouble to connect to AVD. The app just crash
[ERROR] wvd\DUMP ...wvd crashed is written in the Eventlog
Other User have also the same problem
Connection issue with ThinOS connecting to AVD : r/AzureVirtualDesktop
We have tried different THINOS and AVD versions - no success. We also tried to disable SSO in entra. This helped for 1 day, today the problem is back
No Events found!



DELL-Scott H
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October 29th, 2025 13:11
Support and Engineering are aware of this and working with Microsoft to determine root cause and resolution. My understanding is that there were known work arounds (including the above you shared) so if they are not working, please get a case opened ASAP.
DELL-Scott H
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902 Posts
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October 29th, 2025 13:13
Have you tried this suggestion?
We had a similar issue here last Thursday around 6:00 PM (Brazil time). We detected that when entering the username and password, the logon process was concatenating as upn@domain.com@domain.com, which was breaking the authentication. In WMS we changed the “default domain” field to blank, and after that, it stopped concatenating, allowing users to log in again.
I believe something changed on Microsoft’s side, since the “default domain” parameter had been filled in for a long time without issues.
SH_NAG
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October 29th, 2025 14:11
We dont see logins in this format in entra ID
DELL-Scott H
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October 30th, 2025 19:27
Feedback today is that root cause has been identified and private demo code provided to some customers for validation. I’ll circle back when I know more.
If you are affected get Dell support cases opened.
SH_NAG
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November 3rd, 2025 14:27
Please, can you give us some updates? We opened a ticket at Microsoft, They tell us, is a Dell problem. I can not open a Dell ticket, because we have the prolem with older 5070 TCs without support. I hope you can still help
DELL-Scott H
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November 5th, 2025 11:12
A Root cause has been identified by Dell and Microsoft. A public fix is going through QA cycles and is planned (ETA Unknown at this time). A private build that addresses this is available from support while the permanent fix goes through testing and release.
Certu
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November 6th, 2025 09:30
@DELL-Scott H Is there a reference/hotfix which we can reference when contacting Dell support? We would like to test the private build asap.
Thank you.
Wouter
Emiel_HM
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November 7th, 2025 19:22
Hi @DELL-Scott H do you have any update on this issue for us?
Can you advice us how to get this private build?
DELL-Scott H
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November 7th, 2025 19:32
Support should be aware of and able to facilitate access to the private build for testing if you are affected.
If frontline support is unaware of it, ask them to ask their backline. If you still are unable to get access PM me your SR# (Don't post it here) and I will look into it.
Certu
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November 10th, 2025 15:01
Thanks @DELL-Scott H
(edited)
Emiel_HM
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November 10th, 2025 15:04
I am unable to PM either, did receive the following message in my SR. I hope I can receive the beta earlier though as we have go live this wednesday...
Problem description:
Software (Operating System)
** Action Plan **
with some luck we have a new AVD package soon… official release is the 14th …but we do pressure on engineering to get it faster.As soon as I have access to the AVD package, I will share with you..
If you need further assistance with this request, or if you have any questions or suggestions, please feel free to contact me.
Dell Wyse Software Download