Fix Microsoft Teams Error code - 107

The Error Code 107 is most probably related to a internet connectivity issue, as you may see a message just below the error code - "Failed to load https://teams.microsoft.com"

The most common reason for 107 errors is that the Teams app is unable to connect to the Microsoft Teams server.

Below are a few steps that you can try to see if helps:

1. Make sure you have a stable internet connection. Try to switch to some other network and check.
2. Restart the Teams application and check if the issue still persists.
3. Make sure there is no outage at Teams server end (if you are an admin check Teams Health Status at https://admin.teams.microsoft.com)
4. Make sure your Teams application is up-to-date.
5. Clear the cache of your Teams application under %appdata%\Microsoft\Teams.
6. Try to see if Teams Online works: https://teams.microsoft.com/go#
7. Make sure that there are no proxy settings that are blocking access to the Teams application.
8. Check your firewall settings that may be causing issues with connecting to the Teams server.

If nothing works, its better to reach out to your IT Admin, or try: https://support.microsoft.com/en-us/teams.