Apple TV Issues

Hi all

I am having major problems with my jailbroken ATV2. It has been intermittent on various apps for a while now and now XBMC has all but given up. None of the video add ons seem to work and those that do load slowly and not all the time.

As far as I am aware I am running:

Apple TV 2
XBMC 11.0 Eden
Untethered jailbreak from firecore (not sure which one).

It was working until recently so has something changed or need updating with this set up or is it something totally different?

Any help or pointers would be much appreciate as I understand it could be something easy I have missed.