I just upgraded to 100/100 service and got the new gateway router. Every couple of days the 2.4 Ghz wireless stops working, and when I log into the router it shows all devices as inactive. When I try to re-add them it says the password is invalid. I am entering the password exactly as it shows up in the router configuration page. I have to change the password for that network in order for the devices to connect again. This corrects the issue for a couple of days but then it re-occurs. Is my router defective? The 5 Ghz network is unaffected.