It's been a while since I posted in this forum. About a month ago I was ready to mothball my R7500 due to a soft bricking of which was my own dumb fault. In short when I flashed it with OpenWRT I had all sorts of problems. Anyway, I sat down and did a multitude of 30/30/30 resets and then loaded firmware V 1.0.094 and my router has been fully operational for over a month now with not one recurring problem. I am thrilled to have this router working as it should.
It has been stable, no drop outs, or resets. The range and speeds are incredible. I can listen to my iPod while mowing my grass from over 300 feet from the router. So if anyone is having problems with dropouts or losing the 5G band I would suggested doing about six 30/30/30 consecutive resets to clear out the bugs and load firmware V 1.0.0.94 . Good luck.