Netro controller has run fine for 3 or 4 years. Trouble arose overnight. Controller is connected to my WiFi and no lights blinking,  it if I do, say, a manual run, it sends the command to the controller, and the app thinks it is running water, but the valves aren't opening. Have tried to do this with multiple valves, have reconnected to WiFi, etc but can't make it open valves. Ideas?