Forum Discussion
Unexpected login issues after Exchange Online Enabled
After months of O365 working as expected with regards to login, cached login, and a good user experience (even without ADFS). Users were migrated to Exchange Online (EXO) and since then there have be...
Check you have all the Office 365 domains in trusted sites for IE and Edge. It might be that the saved cookie is in a different zone and isn't valid between the services.