I had bought a Archer A7 February of 2022 and for the most part I have been happy with it. But over the past several months I've began to notice that the range has been slowly dropping. My workspace is about 30-40 ft from the router with a few walls in between. When I first got it, I got great coverage and I would consistently get 70 -100 mb/s on my 2.4G and 200 on my 5G. But over that last several months I have seen it slowly drop down to 20 mb/s on my 2.4G and barely connect on my 5G. I've tried rebooting it, factory resetting it, putting it on a reboot schedule, updating the firmware and nothing has permanently worked. I'm not sure what to do next besides scrapping it and getting a new router. If I'm less than 20 ft away, it runs like a charm but more than that, my speed drops dramatically. I've had this for less than a year and I would have expected that it would last longer than this. Is there something I'm missing?