You may get the error code -2:-1200 in the Microsoft Teams application if there is an issue with the audio, microphone or video settings.
Below are some steps that you can try to fix this issue:
- You can check your Teams Audio and Video settings by going to Settings -> Devices
Check the below settings.
- Audio devices - Speaker
- Audio devices - Microphone
- Camera
- Try to clear the Teams cache and cookies by going to "Settings" -> "Privacy" -> "Clear browsing data".
- Make sure that you have installed the proper drivers for the Audio, Microphone, or Video accessories correctly.
- Make sure that you have a stable internet connection. Try to switch to another network.
- Try to disable graphics hardware acceleration by going to Settings" -> "General" and then turn off "Turn on new meeting experience".
- Try to disable GPU: "Settings" -> "General" -> "Disable GPU hardware acceleration (requires restarting Teams)"
- Try to make use of the web version of Teams.

Have Questions? Post them here!
- How to track and download Microsoft Teams meeting attendance report of participants/students
- How to Install Microsoft Teams App on M1 or M2 Mac
- How to uninstall/remove or disable Microsoft Teams
- How to enable, create and use Virtual Breakout Rooms in Microsoft Teams
- Cannot open or preview pdf with view only and restricted download access in Microsoft Teams
- [Fix] Microsoft Teams a JavaScript error occurred in the main process Error
- How to enable Do Not Disturb (DND) mode in Microsoft Teams
- Microsoft Teams - Where would you like to start - Business or Personal
- [fix] White Screen when open Teams on Windows
- How to turn on channel notifications for Microsoft Teams
- Fix: Teams is in preview in Safari on Mac
- Microsoft Teams Error code - 6 issue
- Microsoft Teams Zoom In and Zoom Out Keyboard Shortcut
- [Microsoft Teams] You're not on Teams yet, but you can set it up for your organization.
- Microsoft Teams meeting Full Screen mode option missing - bring it back
- Fix Something went wrong 0xCAA20004 [Microsoft Teams]
- Cannot access files within Microsoft Teams - We are setting up your file directory
- How to Enable Dark Mode Theme in Microsoft Teams
- [Fix] Modern authentication failed here, but youll still be able to sign in. Your status code is 4c7 - Microsoft Teams
- Microsoft Teams enable or disable Spell check
- Fix Microsoft Teams Admin Center error - The Security zone setting isn't configured correctly
- Microsoft Teams adds New Conversation Button
- Microsoft Teams Error - You cannot add another work account to Teams at the moment
- How to Update Microsoft Teams to the latest Version
- Cannot create new Microsoft Team using PowerShell, even as Admin
- MacBook - Time Limit - You have reached your time limit, Ignore Limit - MacOS
- Loading previous page using html button using JavaScript - JavaScript
- W3 HTML validator warning Unable to Determine Parse Mode - Html
- PowerShell iterate and get all SharePoint sites and sub sites - SharePoint
- Java Streams with Filters Examples - Java
- Redirect page using jQuery - jQuery
- Connection Failed: 1130 PHP MySQL Error - MySQL
- Big Sur unsupported Mac [macOS] - MacOS