This May Be because you have Tiscali. The single worst ISP for p2p downloading. Basically, they block p2p downloading at peak times. This includes uTorrent, Limewire, iPlayer and Yes, SkyPlayer.

I Have Tiscali and I have the same problem, My Parents won't change our ISP so i'm screwed, try downloading at 7am to 12am, might work then.