You are using the free version. Get a new key. You have to get a new key every year.
This. Surprised it hadn't been said till now.
You are using the free version. Get a new key. You have to get a new key every year.
try disabling the firewall and if that doesn't help, re-enable it and disable application control. This will help pinpoint the issue.
If that didn't work, try shutting down the whole AV, the issue might not be from Kaspersky