Microsoft teams application will no longer login.

I believe it is TPM issue on the BIOS. Which handles the security. I don't remember how I solved the Teams issue. But I see couple of people office 365 login issues. I was able solve bios reset or bios update to the mother board. I would warn if you are not comfortable updating bios don't do it. Contact your admin or computer manufacturer. 

Another way is to delete saved credential password in credentials manager.

why its dose not work ?

This will fix the issue:

https://superuser.com/questions/1440536/microsoft-teams-cant-connect-to-the-internet-request-timeout-after-second-s

Let us know how you get on.

I wanna talk to my teacher

I currently am working remotely and we use teams to communicate within our office.  Teams has given intermittent troubles.  It will not allow me to login sometimes.  When this happens I have to uninstall and reinstall the application, now that won't work at all.  I like to run the teams app on my local computer while using work vpn.  Currently using the web app to work.  Even an uninstall and reinstall will not work.  Please help. 

Error code - caa70004

There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin