If you’re struggling to log into AVD from a Windoze… ahem, Windows computer with your CAC card… here’s the likely culprit: Update KB5046740.

From this thread on Reddit, it seems like quite a few others have been running into the issue. I tripped over it this morning, myself. It’s a quick easy fix assuming you have administrative ability to remove the update from your own machine.

Hit up an administrative command line and drop this command:

wusa /uninstall /kb:5046740

Reboot, and try logging in to AVD again! With any luck, you’ll at least be functional until the update is reinstalled. 😛