Hello!
Are you still having issues?
Kaspersky does not sound like something I’d like to have installed on my computer (see allegations here), but either way, there is a possibility that they installed a self-signed certificate or something of similar nature on your computer. That is quite common for these “internet security” apps, and it will inevitably cause problems.
If you are still having these issues, please try to uninstall Kaspersky and see if that makes any difference! Not sure that they will correctly clean up after themselves, but you have to trust them I guess.
Kind Regards,
Malte