No longer works! – Control4 for OS 2 Review

I’ve had Control 4 in my home for 6 years. Have used this app on both my iPad and iPhone with no problem. Suddenly, it no longer will log on. Says I need a “4sight subscription” so I can connect remotely. I’m on the same WiFi as Control 4. Contacted my installer and they had no answer for me. iOS is up to date, unless there is a glitch with 13.5.1. Unhappy! Help fix this!
Review by Fluvanna Fred on Control4 for OS 2.