I have 2 v2 cams that always show offline. And 1 that works fine. All in the same firmware you noted. (also have 3 v1 cams & a pan cam, that all work fine)
I wonder what the deal is. This just started happening out of the blue, on one camera, no new Firmware change or app version change. I am going to reflash the firmware and see if that makes a difference.
Yesterday randomly the camera rebooted itself or something and the issue hasnt happened again since. Weird bug… Someone suggested that it might be something with the firmware and the sd card. But now I cant even test fixes. Sorry guys.