LAN and WLAN problems Archer C80
I have acquired this router after the very good experience of the Archer c20, but I have found a problem related to WiFi, every day there comes a point of the day in which the WiFi connection becomes too slow in all my devices, no matter how much I move closer to the router, it does not go up from 5-10 mbps when the rest of the day I have a constant 200mbps, the solution I have found is to restart the router with the button and within 5 seconds the WiFi connection is established again (a favorable point is that it turns on very fast) and the WiFi returns to give me 200mbps in the speed tests.
I have activated mumimo, natboost, and Smart connect (this feature did not have C20), I also have activated the option of daily restart at 5 AM, these slowness problems are experienced at night, and I do not think that it is the operator that me provides internet, because with a router reboot I get 200mbps again, I don't think it is a matter of interference, because I stand next to the router to capture the maximum signal (even the link speed says 433 mbps in 5ghz) and still so i get 4 ~ 10mbps, i think it might be related to internal hardware problem or something? Is there a way I can fix this via software or have I received a faulty product? Thanks.