You may experience authentication issues in Microsoft Teams after the change to @arizona.edu. Issues experienced in the browser may be different than those experienced in the app. Authentication errors may take any of the following forms:

• you are able to successfully log in to either the desktop application or the browser, but not both
• you are able to successfully log in and use all other Office 365 applications
• you were able to successfully log in to both just after the change but have since experienced intermittent authentication issues 
• you are unable to log in to either the browser or the app (rare) 

This article will help you identify any error messages you may see and how to address authentication by platform type. 

For anyone experiencing authentication issues in Teams, it is recommended that you first clear your browser cache. It is also recommended that you then log out of both locations and then log in to the browser version first. This will resolve some issues.

Instructions for clearing browser cache - sorted by popular browsers:

• Google Chrome
• Mozilla Firefox
• Safari
• Microsoft Edge
  
  

For all other issues, review the information below.