The user encounters the issue mainly on the Windows and Mac clients when he launches or tries to log in to the Teams client and encounters the following message: You can get rid of Microsoft Teams error 500 by trying the solutions discussed below but before that, make sure the Microsoft Teams servers are up and running (you may check by logging into your Office 365 admin portal or their Twitter handle). Also, check if Microsoft Teams mobile client either Android or iOS, or its web client by using a web browser is working fine. If you have enabled 2-step verification, then check if using an app-specific password on Teams solves the issue at hand.
1. Logout of the Microsoft Teams Application
A temporary communication glitch between the Teams application on your system and Microsoft servers may cause the error 500. In this context, logging out (through the system’s tray) the Teams application and logging back into it may solve the problem.
1.1 Logout Teams on a Windows PC
1.2 Disconnect Teams on a Mac
1.3 Delete the Teams Credentials in the Credential Manager
The Teams application may show the error code 500 if the Teams credentials in the Credential Manager are corrupt. In this case, deleting the Teams credentials in the Credential Manager may solve the problem.
2. Clear the Edge Browser History
The Microsoft Teams might show error code 500 if the history of the Edge browser is corrupt (as it can conflict with Teams). Here, clearing the history of MS Edge may solve the Teams issue.
2.1 Clear the Teams Cache on Windows
Microsoft Teams may show the error code 500 if its cache or its AppData folder is corrupt. In this context, clearing the cache and deleting its AppData folder may solve the problem.
3. Uninstall the Problematic Windows Update
Microsoft has a long history of releasing buggy updates and the Microsoft Teams error code 500 is also not an exception (reported by many users that the Teams error code 500 occurred after a Windows update). In this case, uninstalling the buggy Windows update may solve the Teams issue. If so, then you may reinstall the update causing the issue and if Teams works fine after the reinstallation of the update, then the issue was caused by the corrupt installation of the update.
4. Reinstall the Microsoft Teams Application
You may encounter the error 500 in the Teams application if its installation is corrupt. In this scenario, reinstalling the Microsoft Teams may solve the problem.
