USB Hub Not Responding

[Beave]

We have a 4-port USB hub for our joysticks and stop button, and recently the hub has not been responding. The hub and all of its connecting members seem to receive power, as indicated by the hub and stop button lighting up when connected. The driver station, however, does not recognize anything connected to the hub at all. I'm not sure what could have caused this, because it literally stopped working in a matter of seconds, where it was working previously.

We will probably go out and buy a new hub soon, but out of curiosity (and a search for a solution, of course) I would like to know - has anyone else had a similar problem as this?