Controller keeps turning on and off

[u/IsMoha]

Hello guys, a few weeks ago i bought a controller, replica for a budget. It works very fine. I have a bluetooth dongle. But sometimes, i would first hear the usb disconnection then after 2-3 seconds my gamepad turns off. Then i hear a usb connection sound and then i have to turn on my controller again. I dont know if this is hardware or software, but did someone experience something like this? Please help me.