Cannot Connect to Meetings from Microsoft Teams Desktop Version

Dear @Saifullah Gazi,

Thank you for posting your question on the Microsoft Q&A forum.

I understand how frustrating it can be when you are unable to join a meeting in the Teams app. Could you verify whether the issue persists on other devices? In the meantime, you can try the following steps:

1. Check different Teams versions

If the issue occurs in New Teams, please switch to Classic Teams to check

Sign out completely > Close Teams > Reopen > Sign in again.

2. Repair Microsoft 365

• Open Settings > Apps > Installed Apps.
• Locate Microsoft Teams, click Advanced options (or Modify).
• Select Repair and follow the on-screen instructions.
• If the issue persists, repeat the process and select Reset or Unistall

3. Fully reset Teams

Reinstalling often does not clear corrupted cache files. Clearing the Teams cache may help: https://learn.microsoft.com/en-us/troubleshoot/microsoftteams/teams-administration/clear-teams-cache

4. Install the enterprise/desktop version

• Uninstall Teams completely.
• Download the standalone installer directly from Microsoft website instead of Microsoft Store : Download Teams Desktop and Mobile Apps | Microsoft Teams
• Install the standalone version and sign in.

5. Check VPN / Firewall / Proxy

Since the browser works but the app doesn’t:

• Turn off VPN (if using one)
• Disable proxy: Settings > Network > Proxy
• Temporarily disable antivirus/firewall to test
• Ensure your company network is not blocking app traffic

I hope the information above is helpful. If you have any further questions, please feel free to reach out.

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Use these steps to troubleshoot the desktop app getting stuck on “Connecting…” while the browser works:

1. Verify account consistency
   • Make sure the account used in the Teams desktop app is the same one the meeting was scheduled for. If Outlook or the invite uses a different account than the Teams client, meeting join can fail or get stuck. Sign out of Teams, close it, then sign back in with the same account that received the invite.
2. Try the web app as a comparison
   • Since the web version works, this confirms the issue is with the desktop client or its local data, not the meeting itself.
3. Reset or fully clean the Teams desktop app
   • Uninstall Teams.
   • Manually remove leftover Teams data under the AppData root (for example, any folders or files with “Teams” in their name under the AppData tree), not just the main Teams folder.
   • Reinstall Teams from the Microsoft Store or the official installer and sign in again.
   • This approach has resolved persistent crashing and join issues where normal reinstall did not help.
4. Check connectivity and network-related causes
   • Confirm general Teams connectivity is healthy by testing chat and channels.
   • If using a VPN, toggle it off and on or temporarily disconnect it and try joining again.
   • If using the desktop app, try the web version at https://teams.microsoft.com/ from the same machine to compare (already working in this case, which points back to the desktop client state).
   • Restart the Wi‑Fi modem or router if other Teams connectivity issues appear.
5. Confirm meeting availability
   • If this happens only for certain meetings, verify that those meetings are actually online Teams meetings and not regular calendar items. If organizing the meeting, open it in the Teams calendar and ensure the Teams meeting toggle is turned on.

If the problem persists after a full clean of the desktop client and network checks, continue using the browser version as a workaround while engaging IT support to review device policies, audio/video drivers, or OS-level issues that might interfere with the Teams client.

References:

• Organizer unable to start Outlook meeting and stuck in virtual lobby
• Microsoft Teams meetings are not available
• Troubleshoot in Microsoft Teams
• I can't reconnect to Microsoft Teams
• Join a meeting in Microsoft Teams
• I can't join a meeting in Microsoft Teams
• Teams continuously crashing in WIN 11 - Microsoft Q&A
• When I try to open Teams meetings from a link in my Google Calendar, the meeting never loads. - Microsoft Q&A