After updating firmware my second deco keeps disconmecting internet acess from devices after a while. Steam deck and nintendo switch both lose connection after around every 10-15 minutes. Nintendo Switch cannot restore the connection at all. Singal strenght keeps showing strong but no internet access unless I make the switch fully forget the network and connect again manually. Works again for 10-15 mins without a problem. 

Is this a knowm issue or possibly malfunctionin unit? Should I try downgrading firmware?