CCAV, quick, full, rating scan: Could not connect....

Hi,

I have latest CCAV version, Windows 10 64b, latest version 1607. I installed CCAV few times and quick, full and rating scan does not work. It shows Comodo Forum
I do not use other AV, defender is OFF.

it dies not work https://forums.comodo.com/help-ccav/status-could-not-connect-t115126.0.html

Please can you help me?