Can google do this?

I was doing an experiment with my adsense account where I use VPN and click on my own ads! I was doing it to test how good the VPN'S are! But then one day, they limited my account because it violated their policy! The problem is, my smart devices such as blink and Alexa also stopped working! I still have internet but something is definitely stopping my wifi to connect to those devices! Anyone else had this experience? Is Google capable of such things?

You got in your own TRAP

you can try changing to any other dns server and see if they work on your network.

I use to pay a lot of people to click on ads on my website, but Adsense kept limiting my account so I stopped.
I would not recommend anyone to do that especially if it's your personal Adsense account.

Google crawls everything so they know what you're doing.
Don't do anything out of the ordinary. They will get you locked out of your account

have you tried turning them off and on again?