[sumtechguy]

The thing is that may not have saved them here. They did an update to make it stop working. You would need to be local only and stay there and never use the online features.

[nickthegreek]

many smart home products use different protocols than wifi. This means they will not be updated without your knowledge and cannot connect online themselves.

[kube-system]

"Auto-executes code from the internet" sounds diametrically opposed to "local only"

[sumtechguy]

Yes. However, what will happen is most will be 'fail to local only' but if that update server ever comes back to life, you are doomed.