I had a tweak called Wifi Booster installed that caused Remote Messages to say that the IP address was 0.0.0.0. Now with that tweak uninstalled, Remote Messages for the most part works, so if anyone else has that 0.0.0.0 problem with Wifi Booster installed, that's probably the reason why it's not working. I would have loved to kept both tweaks, so if there's a way to fix this let me know. However, I still have dropped connections from time to time and the 'Enable' switch gets turned off when I use the messaging app in the browser. I'm using a iPhone 6S 9.0.2.