Can't manage router through iOS genie app

Netgear nighthawk ac1750 smart wifi router model: r6700. I can't manage the router through the app. I'm already connected to wifi, logged into my netgear account. I've uninstalled, rebooted iPhone then reinstalled app. Rebooted router many times. I go under the tab on the app that says "remote" and it says "select router to manage remotely" but there's not one router name on there. Please help