My router ip was 192.168.1.1 now I see it has changed to 172.16.0.1. I have been having trouble with the internet not connecting to the router with the network showing connected. I did a factory reset on the netgear r6200 router and all was well yesterday now today I couldn't connect. So I went into network and sharing and tried the guest network. Still didn't connect had the yellow triangle over the bar signal on taskbar. Did a ipconfig /release and ipconfig /renew and am able to get connected now. I then found my ip 172.16.0.1 is of the comcast motorola modem now instead of the r6200's router ip of 192.168.1.1. What should I do? I'm connected now but have no router firewall. Cable modem is a motorola sb6141.