Help.... this is driving me crazy. iTunes Match plays 1 track and then "iTunes is unavailable"

My ATV2 with aTVflash black has been brilliant.

Not used it for a while and I though would use it properly. Did an update and brought everything in line. I opted for iTunes Match and did a mega update on my library over the last weekend.

 

Issue that I have is that I play 1 track from an album and then it will skip through the rest. The next track I manually select then gives the “iTunes is unavailable - try later”. I have to restart the ATV to get it to play anything else.

Any ideas / help much appreciated !
Cheers

 

Si