I recently migrated from a Exchange 2016 CU17 to a Exchange 2019 CU8.
I had some issue with authentication to OWA and ECP but was able to resolve by using Basic and Windows authentication on the Virtual Directories.
However, now my users are being prompted by a Windows Security box for credentials vs. the default ASPX login page from Exchange.
We are able log into OWA and ECP but with Windows Security box only.
How do I get my ASPX login page back?
Please advise.
thank you,