

The fix below was NOT applied and is NOT needed on CU8 or later.

On CU8, new issues arose and were resolved by fully resetting (restoring to default) the virtualdirectory configuration, and then re configuring them with the appropriate URL values. Update – January 13th 2018: If you upgrade to any new CU versions (CU8 or higher), I would recommend resetting all your virtual directories to REVERSE the configuration advised below. Update – January 8th 2018: After upgrading from Exchange 2016 CU7 to Exchange 2016 CU8 and restarting the server, the password prompt was occurring again on internal/external domain joined computers.
