Hi,
Thank you for posting in Microsoft Q&A forum.
You can refer to the following links to check your issue. If it can't be resolved, it is suggested to open online case to get more accurate help.
https://learn.microsoft.com/en-us/windows-365/enterprise/troubleshooting
https://learn.microsoft.com/en-us/windows-365/enterprise/connection-errors
Thanks for your understanding. Have a nice day!
Best regards,
Simon
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