WAN IP on App doesn’t match WAN IP on router GUI

I think my Xfinity Gateway / Router ( XB7 TG4482A) is being cloned and or manipulated.

On the App when I go to Internet / advanced settings / Lan & WAN …it shows me what my WAN IP addresses are for my IPV4 & IPV6 connections.

When I hook up an Ethernet cable to my Xfinity router and connect to the routers GUI via 10.0.0.1, I get completely different WAN IP addresses for my IPV4 & IPV6 than what the app shows. 

In the past they were the same and there is no reason for the app and router gui to show different WAN IPs 

please help!