I have a TP-Link ER605 router and am planning to add an Omada switch. I installed the Omada software controller to learn how it works, but it cannot be launched. I get an error message "launch failed"

The TL-SG116P data sheet gives only the maximum power consumption. I want to know how much the switch consumes on its own, without POE devices connected. I know my devices' consumption is very low, an

The router is connected correctly. Al Wifi is enabled. Ethernet and the Guest Wi-Fi have internet, but the regular Wi-Fi, (2.6G and 5G) don't. Can this be caused by a wrong setting (I cannot see any),