R7000P losing 2.4Ghz wireless completely after a few hours

Thanks for the reply.  Firmware version is V1.3.1.64_10.1.36 

I have done a factory reset (hold button 7 seconds, power cycle, R7000P goes back to factory defaults, and then I set device pw, SSID, and wireless password, leaving all other settings as factory defaults.

Immediately after factory reset, 2.4ghz did not work at all; I found through experimentation, that changing the 2.4ghz wireless channel setting from "auto" to a fixed number, like 4, 8, or 11  would start working immediately after "applying" the channel change, for about 1 minute, then freeze up again.  So, whatever is failing is not a "hard" failure, it can come back to life without a  power-cycle, but it doesn't live long.  Switching channels wakes up the 2.4Ghz, at least for a short time.

I did not reflash the firmware image to the device as it was already loaded with the latest .36 firmware; I suppose the next thing to try would be doing a reflash, so I'll do that when I have time and continue to try random other things, and report back here.  

I'm not hopeful, this problem has been going on for years, reported by dozens of people across many different versions of firmware.   I think its a hardware issue, I think netgear knows what it is and has decided its not cost effective to fix it in this product, so they've gone silent about it.  It's likely some devices are just longer lived than others, if its because an individual component is wearing out, then its luck of the draw when it finally gives out, could be months, could be years.    Even if I get netgear to replace my R7000P, I would expect the replacement to fail eventually the same way, the only real solution will be to throw away the R7000P and replace it with something else.