Lenovo SmartHub 500 MTR - Log in issues

Hi there, this is my first post here so if I do something wrong, let me know.

I have searched posts which can solve my isseue, but nothing found.

Ok...

I use Lenovo SmratHub 500.

Today, when I have tried to start the meeting, MTR can't log in to MS Teams account.

I have Internet access, my credentials are also correct.

The strange thing was that on the screen the meeting invitation was displayed, but I could't join because login process was not end. I have waited more than 10minutes.

Finally I logged in to Administrator account, I installed standard Teams application and joined to the meeting. Last week everything worked fine.

I not sure, but maybe I have to do some update.

Did someone have similar issues?
I would be appreciated for any help.