Home Internet Devices

My Home Internet app won't display the devices connected to it. All of the other tabs work (Home, Network, Support, etc.) but everytime I click the Devices tab it asks if I am setting up a new gateway. I have had Home Internet for almost a year now, and my gateway has been set up this entire time.

One time I was able to see all of the devices, and I turned off 1 tv. Now I want to turn it back on but can't!