The username format is typically abc123@mocs.utc.edu (students) or abc123@utc.edu (employees) where abc123 is your UT NetID. This is usually the same as your UTC ID, but not always. Your NetID can be found by searching your name in the UT Directory or by contacting the IT Helpdesk at 423-425-4000.
You may need to change your password. Please go to https://utc.edu/pw and use the change password link to update your University of Tennessee password.