Momentary no messages can be received. The server for account "xyz" has the error "Connection is closed 13". Possibly username/Password or your security settings are incorrect. Would you like to reenter password?

After reentering password sometimes Outlook works and sometimes i have to end outlook completely and restart. Also sometimes in the general settings of account the preset password disappears and I have to reenter it there as well.

Enable connection with SSL is activated for both entry and exit server.

Before updating to the new OS Outlook was working flawless.

Any suggestions? Thanks.