Forum Discussion
SP133540 - Problem accessing SharePoint Online or OneDrive for Business sites
Our users are heavily affected by this and it is becoming more than a nuisance. Our users are used to accessing their files via the File Explorer and this feature has become useless for many. This h...
The admin message is probably related to this. I have a ticket in for it too and seems like the same issue. Guess we are still waiting for a fix, but it's related to guests and people hover cards.
https://techcommunity.microsoft.com/t5/SharePoint/User-hover-cards-causing-Team-Group-Guest-users-SharePoint/m-p/170799
However, the auth prompts for file explorer are going to be unrelated.