Mouse connection problem?

So recently this problem has been occuring a lot. My mouse has a hard time connecting to the USB port, and when connected, it easily disconnects again. I've tried all USB ports, and it's the same result. I tested the mouse on two other computers, and the problem persisted.

My mouse is a Razer Deathadder 2013 and I've had it for half a year.

The compuer always knows the mouse is connected, but cannot recognize it.

Any ideas?