So the switch in question is working again, but now the other V2 switch stopped working! As if only 1 of them can connect at a time!

Nope, besides my cell phone (that doesn't spend all that much time in the garage) all I have are the switches and outlets I mentioned along with a blink camera and module.

I have 4 HS200 switches in my garage with a router located inside the garage about 5 feet way. Two of them are V2 and two are V3, neither of the V2 switches are very reliable and it seems like one of...