Just to confirm once the 5ghz goes down I cannot reconnect to it, if I attempt I get an error saying "Can't connect to this network" on Windows, on the logs I see: daemon.err odhcp6c[4074]: Failed to send SOLICIT message to ff02::1:2 (Cannot assign requested address)
So the router is unable to assign an address to any of my devices.
@Netduma Fraser Also I don't want to factory reset my device, if that is the next steps, I already done it about 3-4 times and didn't fix the problem. It takes me about an hour to name each device and setup internet rules each time since there is no export/import way to save these settings. My XR500 never had these kinds of problems. I have remote access setup, can you get one of your developers to take a look at the problem? I can reproduce the problem on demand, I just need to download an Xbox game.
Edit: Width changes don't matter I don't think this is a bandwidth issue but more when traffic spikes a crashes that band. It's current sitting, elevated on a wooden shelf with nothing above or below it, no metal touching. No electrical wires outside the power cable and cat cable. I set the antenna at that shape, but didn't make a difference. To me this seems like an OS issue or perhaps a hardware issue where the 5ghz chip is wonky.