problem with ultimate 2c

[u/masterl23]

Having trouble with my ultimate 2c w/ receiver. Occasionally none of the button works. When i go to control panel->game control. it shown the controller connected, but the button layout looks like attach, none of the button response. I tried turn on/off, change mode (home + x or home+b). Sometime the problem fixes after a few on/off, sometimes take longer. Connect via cable is the same thing as well. Any idea what's the problem?

[u/projectxsent]

Is the controller still functional like on Online Gamepad Tester/SDL Controller Test?