If your router broadcasts a 2.4GHz network SSID, you should be good to go. Setup only works on a 2.4GHz WiFi network. Most current generation routers are dual mode, and provide both 2.4GHz and 5GHz networks. Turn on WiFi on your Apple device, and connect to the router's 2.4GHz SSID. Then run setup on the app. Once setup is complete, and your controller(s) are connected to the WiFi network, you can control your lights from the app while connected to either the 2.4GHz network or your 5.0GHz network.
Please call DEKOR customer service for assistance.
Yes, you can set them up at the same time. Once you have your controllers and lights set up, power each controller, put each of them into Setup Mode, and then use the app to run setup ("Add Lights").
The controller is in Setup Mode when the SYNC-WIFI Connect light is OFF (the POWER ON light should always be on with the unit has power). If the SYNC-WIFI Connect light is ON, or flashing, press and hold the ON/OFF button until the SYNC-WIFI Connect light goes OFF.
This is very simple to do, and we do strongly recommend that you give them a name that makes sense to you. For example, if the controller is controlling the lights for your patio, "Patio" or "Patio Lights" would be an appropriate name. To change the name, from the My Lights screen, tap on the settings icon for the controller that you want to rename. This will take you to the Settings screen for that controller. You will see the current controller name in the top row of the Settings screen. Tap within that row, and edit the name to your liking, then tap the Save button in the top bar.