I have recently enforced a better privacy practice for my smart home devices, that includes creating a new access point for those devices and blocking them of internet access with VLAN.
Since then, my yeelight minas celiing lights goes unavailable whenever I physically switch them off and turn them on afterwards.
One really stupid thing is it needs internet access for using LAN control feature. it’s really really dumb.
but at the same time, in this kind of age where everything wants to phone their home, i need to somehow mitigate this in every possible way such as by fooling the devices as if they have access to the internet.
Is this kind of things possible?
thanks!


I seem to recall that a guy did do this once with a Google chromecast but he was a professional IT security of some kind, and that was years ago.
I seem to recall that same year reading about a network engineer who used their homes nest thermostat to stop his wife from sleepwalking to the kitchen to eat and ruining her diet.
It’s not that I think it can’t be done, it’s just that I think it might require you to either spoof responses or change the the firmware in some way.