I had a similar, though not exact issue, with a lamp socket recently. I have a twin socket flood light for the entrance of my house. I wanted them to be turned on by the camera when motion is detected, else the normal twin carriage lights are always on at night to give the area some light.
I ended up with 4 lamp sockets. I initially purchased two from Amazon and then I found that Wyze.com have them for much cheaper so I bought two from Wyze planning to return the two to Amazon.
I took one socket from Amazon and set it up with an existing v3 camera that I have been running for months elsewhere in the house so I know the camera and cable are working fine.
Once I had everything working and was satisfied that I liked the setup I took one socket from Wyze and inseted it into the second opening of my flood light. Everything seems to be working fine. I had twin lights. Note, all firmware were updated first thing.
Then one night I noticed the second or satellite light was not coming on when the first one was. I checked the app and low and behold it said the v3 Cam is controlling only 1 socket. Huh? So I cut the main power and rebooted everything. Checked the app and now I see 2 sockets and everything was working fine again.
Next morning, I checked the app again and back to 1 socket reported. Turning on the lights via the app only cause 1 light to light up, as expected and the satellite is no longer linked. Another reboot of power fixed it again, showing 2 sockets.
The pattern I noticed for the two times it lost the link was that it takes about 10-12 hours before the link is lost and you have to reboot.
Of course this is not acceptable since the system will probably need a reboot when you’re not there.
I then took the satellite socket and replaced it with a socket from Amazon. Did exactly the same install and the system has been running fine with 2 sockets for a few days now. Knock on wood!
Sorry for the long story but bottom line is that these sockets communicate via Blue Tooth (I think) and you might (probably) have gotten a defective one.
I know it’s a pain, especially you said it’s tough to get to the location where you have it, but I think you need to try another socket. I don’t think it’s your camera or cable or even your app.
Good luck and let us know what happened if you decide to try another socket.