You should be able to use Teams on the web without any problems.
Do a full logout, open a newChrome or Edge taband go tohttps://teams.microsoft.com.
enter to your account.
If youre using a wireless connection, switch to a cable connection if thats possible.
Or go to your router parameters and switch to a different wireless channel.
reboot your router as well.
If this alert is caused bybandwidth issues, disconnect all the other devices using the connection.
Speaking of bandwidth, close all the other programs running in the background.
see if you notice any improvements.
By the way, if youuse a VPN, turn it off and verify if the alert is gone.
VPNs are known toslow down your connection.
Additionally, dont forget to check your web connection filters.
Disable them and peek if you notice any improvements.
Many users confirmed they fixed this issue by disabling specific filters.
You may need to shut down the filters one by one to identify the culprit.
Reinstall the App
If nothing worked, try uninstalling and reinstalling Teams for desktop.
