It's actually a side benefit that drives the main requirement availability.

I have a grow shed. It's only about 6x6. The interior walls and ceiling of the grow shed is totally covered with multiple layers of metallicized bubble wrap insulation. It does a pretty good job of blocking Wi-Fi signal but not completely. I'm not trying to block the signal, I'm trying to block the cold.

Inside the grow shed I have a whole bunch of steel shelving setup. That in turn is wrapped entirely in additional layers of this insulation. Another layer of Wi-Fi block.

I have several Wi-Fi devices inside this area. I have temperature monitoring and I have a smoke detector and I have a Wi-Fi camera. All of these devices work but they all tell me that the signal is very weak. It's barely scraping out of there. My phone won't work in there. At all.

And then I just added a new camera to try. It's a whiz-bang high quality tilt-in pan yada yada yada. It works great. Until I place it in the shed, and then it no longer transmits.

Okay, what next?

I have to run the cable to the shed, that's fine, that's easy and cheap. But what next? Throw another Wi-Fi point inside the shed? I don't like that. It will introduce subnetting and stuff I don't want to deal with. But how about I pop a Poe camera in there? No Wi-Fi required. It will be part of the network base cabling.

Network plug-in none Poe cameras are really not highly available. But those Poe cameras are. Sounds like it's time for a Poe camera.