I'm running Windows 7 and have a Windows 8 phone.  Both were working correctly with my Windows Live ID.  I purchased an Xbox Music Pass, and it asked me to install Windows Authenticator app on my phone.  After that, my Windows Live ID/password combo no longer worked anywhere.  From my PC, I reset the password.  That new password now works on my PC Windows Live Mail client, but nowhere else.  I cannot access my email from my phone.  It says the account/password combo are invalid.  I cannot access my just purchased Xbox Music Pass via the PC or via my phone.

A) Why was my password changed as part of purchasing and setting up Xbox Music Pass?

B) After resetting my password, why does it only work on the Windows Live Mail client on my PC?