Login Denied on Nighthawk App

I just got a new Samsung S24+ (Model SM-S926U, Hardware version REV1.0, Android 14) and am signing into all of the apps. I went to sign into the NETGEAR Nighthawk WiFi Router app (Version 2.40.0.4040) and got the message, "Login denied. We're sorry, your login attempt was denied. Try logging in again." Before I get the login denied message, the a previous screen flashes the message "We don't recognize this device" with something about sending a code that will disappear, then there's a count down. I can't really see what the code is or where it's being sent because it flashes too quickly, but it's not being texted to me or going to email, so I assume it's a push to my old phone, which seems like something Netgear would do... So now I'm stuck in this loop of trying again. I've done all the silly things I shouldn't have to do, force stop, clear cache, clear data, allow all the access, etc. I even re-downloaded the app, even though it was freshly downloaded 'cause it's a new phone. I don't have a CAT cable to connect to the AC1900 (C7000), so I'm not sure what to do next to make this phone a trusted device or simply access the AC1900.