Rebooted the router. Restarted the phones. Turned off network notification on the phones. Using WPA2-PSK on the R7800. Ensured that MAC fitering was turned off(no black/white lists in use) (Tried static IP address, but not sure I did that correctly) I have an Xfinity modem which has a wireless router(but on different channels than the R7800).

Your router has 2 IP addresses: one public IP address (WAN) that faces the outside world, and one private IP address (LAN) that is used in your home network. The private IP address, also known as the Gateway IP address , is what all your devices in your home network will use to access the internet, as that one is routing all the information. AC1000 WiFi Router - Netgear UserManual AC1000WiFiRouter ModelR6080 NETGEAR,Inc. August2019 350E.PlumeriaDrive 202-11754-04 SanJose,CA95134,USA Netgear WiFi Router Troubleshooting and FAQ

N600 Wireless Dual Band Router WNDR3400v2 User Manual

Release and renew your IP address in a Netgear router

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Even though that method gives me a new IP address, I still get the same IP address when I connect through the Netgear router! If anything, the router's IP address should be EASIER to change than the ip address I get when connected directly to the cable modem! Unfortunately, I must use a router because I have multiple computers sharing the Netgear Routers: How to change your DNS settings