Archer A7 Range is steadily decreasing
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 30-40 ft away and initially I was getting average of 70-100 mb/s on 2.4G and 200 on my 5G. But over the last several months the range has been dropping and now I less than 15 mb/s on 2.4G and barely able to connect to the 5G network. I've tried rebooting, putting it on a reboot schedule, factory resetting it, and updating the firmware and nothing has worked. It still works great less than 20 ft from the router, but any more than that it drops out drastically. Overall I haven't had an issue with the router except for the range. Is there anything I can do to fix this?