Accessing Microsoft Teams for Education using school or organizational credentials
Hi @Andrei,
Thank you for posting your question in the Microsoft Q&A forum.
Based on your sharing, since you can work properly in the Teams web version, the issue is highly due to corrupted Teams app data or cached credentials got stuck. Since you have tried reinstalling Teams, but the issue still persists, I suggest you should double check with these workarounds:
1/ Check date & time
Changing the system time zone can help fix login issues caused by incorrect time settings that can prevent Teams from communicating with the server. This can be done by accessing your computer's Date and Time settings and adjusting the time zone accordingly.
- Right‑click the clock > Select Adjust date & time
- Turn on Set time automatically and Set time zone automatically
- Click Sync now.
2/ Fully close and restart Teams
- Right‑click the Teams icon in the system tray > Quit
- Open Task Manager (Ctrl + Shift + Esc)
- Find Microsoft Teams, select it > End task
- Relaunch Teams.
3/ Reset the new Teams app
- Settings > Apps > Installed apps > Microsoft Teams (work or school) > Advanced options > Reset. If it doesn't work, select Repair.
4/ Clear sign‑in tokens & credentials
- First going to Settings > Accounts > Access work or school > Select your school account > Disconnect
(If this is a company‑managed device, removing the account may also remove MDM/Intune management. If unsure, skip this step.)
- Open the Control Panel on your PC and Go to User Accounts > Credential Manager.
- Under both Windows Credentials and Generic Credentials, look for any entries related to your school account > select and remove those entries.
- Restart your computer, add your account in Settings > Account > Access work or school again and try signing in to Teams to see if the issue persists.
5/ Contact your school IT admin
- If the problem persists, I recommend contacting your school IT administrator for further assistance. There is a possibility that your account is not allowed to access Desktop app via Conditional Access policy. Your administrator can help you verify the status of your account and provide proper assistance based on your situation. If needed, they can submit a support ticket through the Microsoft 365 admin center for further investigation.
I hope this helps you move forward smoothly. If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.
Thank you for your patience and understanding. Looking forward to your response.
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