Office365 Apps
You will need to remove all previously signed in accounts in one of the following apps (Word, Excel, OneNote, etc.)
Open Word, then click your name on the top right of the window.
Select Sign out. Do this for each account.
Then, sign back in with your first.last@therigy.com account and CPS password.
You may need to "Forget" existing accounts.
Login with your first.last@therigy.com account & CPS password. Make sure it says therigy.com