A few months ago, I connected my Vizio to my network to do firmware updates to see if it could be any better since it was 3 years old and I was sure there were improvements. Then and only then did I start seeing random crashes and the TV speakers turning on and up to max volume (I have a sound bar + subwoofer). The TV shut off without warning in the middle of a Rocket League tournament and wouldn’t turn back on until I unplugged it and plugged it back in. That was the last straw. Disabled the Wi-Fi connection and it’s been running fine ever since.