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We have been seeing an increasing number of users who are receiving this message when authenticating to the AVD environment.
User opens the AVD client (remote desktop; v 1.2.4582.0 (x64), get prompted to MFA, they get the number, approve it, then the blank dialogue appears). They close the dialogue and get prompted to re-auth again with MFA - endless cycle.
Environment is Windows 11, HAADJ with passwordless MFA (MS Authenticator).
We have tried a multitude of tactics to try and resolve this:
We are now at a loss as to how to resolve this.
Hello Jumpin Jimmy
Firstly, apologies for the delay in responding here and any inconvenience this issue may have caused.
Can you please check that you have the latest cumulative updates installed on your endpoint device?
Based on what you have shared, this doesn’t seem to be an AVD/MSRDC issue, but rather an issue with your local device getting signed in to AAD.
Hope that helps.
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We are also experiencing this
Windows clients as up to date as possible
Office / Outlook apps as up to date as possible
The problem surfaces for just signing into the Office app, or when trying to add a shared mailbox to Outlook.
Sign in > Multi-Factor Authentication > Stay Signed into all your apps - blank window
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Did you find something ? I have the same issue.
Thanks,
Kevin - you may wish to check that your company antivirus/security application is not blocking one / some of the URLs that the authentication process uses.
Useful page here:
The problem URL appears to be
aadcdn.msftauth.net/ests/2.1/content/cdnbundles/ui-light.min_y6kevniabpxvxhzk1csrqa2.css
Many thanks, it solved my issue
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(41.6, 72%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPR%3C/text%3E%3C/svg%3E)
I had similar issue last week. I changed network settings on vm and it got assigned new ip in other port group which has vms does not have issue after that user is able to signin without any issue.
