I have a Cam V3 in my garage and every other day or so it goes offline. This is a real pain because I have to back my car out of the garage to get to it. I go through the whole reset routine and the camera works fine for a day or two. Then it goes offline.
Previously, the camera worked fine for about a year.
How hot is it where the camera is? Can you put a thermometer near it?
I had the same intermittent problem and I replaced the charging cube thing, and the problem never came back. Just sayin…
Thanks! I will give that a try!
Certainly not any hotter than what my outdoor cameras are subjected to under a blazing hot sun!
Well, if it is above 113°F, you need to cool it down. You might do that by lowering it, as heat rises. If it is under 113°F, if you have good power and signal then you may be able to make a case for replacement. Assuming you are still under warranty, anyway. 
It’s up high so nobody can reach it! 
It may get pretty hot during the summer then. 