Microsoft Teams App Not Working on Mac: A Troubleshooting Guide

As a Mac user, I was excited to try out Microsoft Teams on my brand-new Mac Mini M1 running macOS Big Sur. However, I soon encountered an issue where the app would not work properly, and I couldn't log in using my Veeam account. After trying various troubleshooting steps, I managed to resolve the problem and wanted to share my experience with others who may be facing similar issues.

The first thing I tried was to clear the contents of the Teams folder under Library -> Application Support -> Teams. This is a common troubleshooting step that can help resolve issues by removing cached files. However, even after clearing the folder, I still couldn't log in using my Veeam account.

Next, I decided to use another account and entered my personal Outlook address. I went back again and cleared the contents of the same folder, then fired up Teams again. This time, it gave me the option to choose a login, so I chose the same Veeam account. Unfortunately, I still encountered the same issue.

I searched for solutions online and came across some Microsoft support threads that suggested cleaning out cached files under the logged-in user's Library -> Caches folder. However, this folder didn't exist on my system, which made it difficult to follow those steps.

After trying various troubleshooting methods, I finally found a solution that worked for me. I cleared the contents of the folder under Library -> Application Support -> Teams again and tried to fire up Teams once more. This time, it gave me the option to choose a login, so I chose my Veeam account without any issues.

It's worth noting that Microsoft Teams is not optimized for M1 processors like my Mac Mini, which can cause compatibility issues. Additionally, Teams requires Rosetta 2 to run, whereas other Office 365 applications are optimized for M1 processors.

As a new user of Apple Silicon, I expected some compatibility issues with my older MacOS apps. While it's understandable that there may be some hiccups when transitioning to a new processor architecture, it would be great if Microsoft could provide more comprehensive support for Mac users migrating to M1-based devices.

In conclusion, resolving the issue with Microsoft Teams not working on my Mac required a combination of troubleshooting steps, including clearing cached files and restarting the app. I hope this guide helps other Mac users who may encounter similar issues with Microsoft Teams.

Microsoft teams app not working on mac