I am having a lot of trouble to understand what the problem is. I´ve migrated a domain from Windows 2003 to Windows 2008 R2, witihn the migration we also migrated from Exchange 2007 to Exchange 2010.
All computers using Windows 7 dont have any problem using Outlook 2007 or 2010, but users using Windows XP Pro have problems to connect, and I always get a password prompt.
The only way I´ve been able to connect this Windows XP Pro´s Outlooks is by disabling MSSTD line on the Exchange > Connections tab.
The thing is that disabling this parameter works for one session or so and for some reason it gets activated again and fails to connect.
Any ideas why is this happening and how to solve it?
Thanks a lot!