My Deco S4 device wasn't connecting to my network.  I restarted the device but still didn't connect.  I reset the device to try to add it but when I tried to install the device it would not connect to Bluetooth using the Deco App.  I deleted and reinstalled the Deco app on my phone and now when I try to add a Deco by pressing the little + sign in the right corner I get the error "Unable to add Deco. Please try again later."

Any idea how to get the + sign to work again?