Cannot setup Storm Ready WiFi

The only options I have in my Xfinity app are “overview” and “account” (and since I of course need the “devices” tab to set up a new device I am out of luck). Of course, it also seems ridiculous to me that the app is the only place to get something set up, but I guess that’s what happens when you try to push every one of your customers to your app and nowhere else. I have seen other posts recently on this form saying this is a known issue in the app and there’s no fix. As such, I am probably going to be returning the storm ready Wi-Fi because it is not set up in my system, and there seems to be no way to set it up in my system despite multiple interactions with “tech-support“ people somewhere at a call center that don’t really seem to know what they’re talking about and can only promise to escalate it to a higher team??? If anybody else can help before I send it back, it would be much appreciated