This morning I forgot Comodo Cloud Antivirus regarding access to the WiFi PC to my ADSL modem.
In the logs I saw that it was acting on the windows 10 firewall policy that I think was blocked by access to WiFi. After trying it I did not have this problem anymore. So I sincerely returned a free Bitdefender which in my opinion is the same as a much more stable product.
Then maybe I will try 'in the future to try again to use Comodo products that my tests still have some bugs to solve.
Maybe if you solve, I could come back to re-use it willingly.