Well, I reserved a permamanent ip address to the device facing the issue under DHCP. Also disabled MU-MIMO. Have not faced the issue since then. Anyone facing the connection dropping problem can try...

Archer C80 stops responding every 5-10 minutes and then starts working again. This happens only on Ubuntu 20.04. I have tried other routers, mobile hotspots and the issue does not occur. When the...