Nighthawk App continuously times out when logging on to C7000v2 Modem Router

Customer Service Representative (CSR) called, and we spent the better part of an hour on the phone; but weren't able to resolve the issue.  The Nighthawk App still could not be used by my OnePlus 6T (Android 10) smartphone.  The CSR was polite and professional; many thanks.  However, I determined that I am able to access the Modem-Router settings through the online NETGEAR Genie.  That is fine; however, I still don't know what additional benefits the smartphone Nighthawk App provides.  So, for now, I'll have to rely on the online NETGEAR Genie.  If the Nighthawk App Developers can find a "fix" to the issue, I would appreciate it if they could post an update to the Google Play Store version of the Nighthawk App.  Also--the CSR noted that my C7000v2's firmware is Version V1.02.14.  He told me a newer version is available, and thought that maybe the "Engineers" could push the newer version to my modem-router.  That has not yet happened.  Since I purchased the modem-router direct from NETGEAR, can that newer firmware be pushed to my device?  Or, does NETGEAR need to communicate with Cox Communications, to have THEM push the newer firmware?  Any further help you can give in that regard would be most appreciated.  Thank you!