What can cause a router to kick off line and not the modem? After a modem and router reboot the router will stay on line for a day or so and then kick off again. I called Spectrum while the router was kicked off and they said the modem was showing connected on line with no issues. They said I had a bad router. So I got a Spectrum WiFi router and the same thing happened again. So I presume it is not a router issue. There is a 16 port and 8 port switches in my system. I took the 16 port switch out of the system and the issue went away. So do you think the 16 port switch is going bad or could it be one of the devices that are plugged into the switch causing the issue? It is a Netgear switch and still under warranty. Do you think Netgear will replace it or will they say it is a device causing the issue?