Nighthawk App Firmware Message

I downloaded the Nighthawk App on an iPhone X and when it connected to my C7000v2 Modem WiFi Router a message said "Firmware Out of Date".  I understand my ISP has to push the update but I can't get beyond that message to use any of the network management functions. Any ideas on how to bypass the "out of date" message?  I've clicked on the "Connect with Anywhere Access" and it takes me to the "Your Products" screen with only the C7000v2 listed with a check mark and a green dot next to "connected locally".  My Netgear EX6150 AC1200 Extender isn't listed.  I've opened the app connected to the Extender and the C7000v2 and nothing changes.