Newbie here. Can anyone please offer some advice. I recently bought a Xiaomi Router AIoT AX3600 but it keeps losing signal, constantly. Is was supposed to be an upgrade but feels more like an 90's phone modem, except those actually use to work. The new router will work for an hour or 2 and then disconnect. I have switched back to my old router and there is no signal drop. Any help or suggestions will be much appreciated. Thank you.