So far this is what has worked for me. I opened the Google Home app on my phone, navigated to the settings for each of my chromecast devices (1 audio & 1 regular) and unchecked the box to send device usage data and crash reports to Google. Then I rebooted each chromecast device and my Windows 7 PC. Here's what it fixed (so far) but I don't know how long it will last:  It's been 4 hours now since I've had the "self signed certificate" warning from Kaspersky and I've been using th