I have been running a Zetlight QMaven II and controlling it with the Horizon Aqua app for two years. I powered down everything to take the tank lids off and give them a good cleaning. After startup again I cannot connect to the lighting system. I can connect to the QMaven wifi signal with my phone but cannot access the lights in the Horizon Aqua app, the icon is greyed out. I've tried reinstalling the app, cleaning the network settings from my phone without any luck. Have not gotten much help from the manufacturers. Any suggestions?