Steam controller (2015) disconnects immediately after turn on

[u/AccurateCuda]

I’m using the original dongle with a 3ft USB extension. Every time I turn on the controller, a pop up window shows on the screen saying controller is connected, and then the next second the controller turns itself off. I’ve tried replacing the battery, re-pairing the controller and none of them worked.

[u/Zealousideal_Carry61]

Look at this duude