Microsoft Teams (part of Microsoft 365 offering) has emerged as a great meeting and collaboration tool, giving good competition to Zoom, WebEx, Google Meet. With increasing popularity and usage, there are also frequent complaints from customers about not being able to sign in and facing errors while using Teams. Some errors occur directly related to Teams and some with an integration like SharePoint, Power Automate, etc.
Here is a list of some common and frequent login errors with Microsoft Teams and how they can be fixed. For fixing some errors, you will need assistance from your organization's Microsoft 365 Tenant Admin.
Microsoft Teams common issues
| Error Code | Error Description | Troubleshooting details |
0xCAA90018 |
This error occurs when you use incorrect Microsoft 365 login credentials | Ensure your account and password is correct to login to Mictosoft Teams. Sometimes the Windows and Microsoft 365 credentials may be different, please verify (take help from organization IT admin). |
0xCAA20003 |
This error is related to authorization problems with Teams | Ensure the system (desktop/laptop) Date and Time are set up correctly. Inaccurate date and time settings can affect your connections to https sites. |
0xCAA82EE2 |
This error is related to time out requests | Ensure that you are connected to the Internet and firewall configuration isn't blocking any access (take help from organization IT admin). |
0xCAA82EE7 |
This error occurs when the server cannot be reached and resolved | Ensure that you are connected to the Internet and firewall configuration isn't blocking any access (take help from organization IT admin). |
0xCAA20004 |
This error occurs when your request needs approval or authorization to server | Confirm that your organization is complying with Azure Active Directory (AAD) configuration policies (take help from organization IT admin). |
Smart Card not working |
This error occurs when the smart card PIN is not working | Try re-inserting the smart card. If that does not help, the certificate might be corrupt, take help from organization IT admin. |
More Posts related to Teams,
- How to find the installed version of Microsoft Teams
- How to enable Do Not Disturb (DND) mode in Microsoft Teams
- Microsoft Teams Zoom In and Zoom Out Keyboard Shortcut
- Microsoft Teams: Sign-in is blocked error
- [Fix] Microsoft Teams Error code - 2:-1012
- How to enable Do Not Disturb (DND) mode in Microsoft Teams
- Microsoft Teams Error code - 6 issue
- How to clear Microsoft Teams Cache on Mac (macOS)
- How to disable Microsoft teams from startup Windows 10
- How to start Microsoft Teams on Mac Startup
- Teams - You're offline. Messages you send while offline will be sent when you're back online
- Microsoft Teams - Where would you like to start - Business or Personal
- How to migrate Kaizala to Microsoft Teams
- Microsoft Teams meeting Full Screen mode option missing - bring it back
- Cannot access files within Microsoft Teams - We are setting up your file directory
- Fix: Teams is in preview in Safari on Mac
- Microsoft Teams Error - You cannot add another work account to Teams at the moment
- Fix - You're missing out! Ask your admin to enable Microsoft Teams
- Microsoft Teams enable or disable Spell check
- Error code - 7: There's a more permanent way to sign in to Microsoft Teams
- [Microsoft Teams] You're not on Teams yet, but you can set it up for your organization.
- Microsoft Teams adds New Conversation Button
- How to Manage Profile Picture on Microsoft Teams
- Common Microsoft Teams sign in errors and how to fix
- Fix Microsoft Teams Admin Center error - The Security zone setting isnt configured correctly
More Posts:
- [Solution] Java JDBC SQLException: No value specified for parameter 1 - Java
- Powershell Comments Examples - Powershell
- How to write hello world different languages syntax - HowTos
- How to Install Python Modules in VS Code - Python
- What does has notifications silenced in Messages App mean in iPhone - iOS
- How to know the version of Teams installed - Teams
- Get the Current Working Directory using Java Code - Java
- Get the Complete Sha256 Container ID for Docker Run Command - Docker
