This may strike a chord.
I switched on the telly last night, to watch some football (I know...), and got a message from Sky which said 'this channel has a technical problem, please try later'. Oh well, I thought, and went over to BBC4, where I watched something much more interesting (about motorways, since you ask). This evening, I switched it on again, and got the same message on EVERY SINGLE channel. Given that I'd intended to watch the 6 o'clock news, 'please try later' wasn't really that helpful, as advice goes.
Well, I dug out the Sky+ manual, as a first step. Naturally, this error message wasn't listed. (Can you smell the residues of boiling blood yet?) Anyway, being the analyst I am, I thought 'is it possible that Sky has totally crashed and no-one else has noticed?' So I phoned my brother-in-law Alan, and asked him, as a fellow Sky victim, to please check his out. Anything to avoid calling the Sky help-desk. They were just off to their first ballroom dancing class (don't ask), but he reported that it seemed fine. Just as were about to ring off, he said 'actually, I remember something similar ages ago. They told me to power it off, take out the card and put it back, power it back on again.'
This took me back to my days in IT, when 'switch it off and on again' (or as one guy, Neil, charmingly used to put it, 'on and off again' - but he was Australian) was a first resort. Of course I tried it, and of course it worked. SO, why, given that the Sky people by their own admission know that this problem exists, and how to fix it, WHY don't they put this in the f******g manual??
Phew! As Auden put it, nothing like a good dump, is there?
Right, going to watch a bit of telly now (if it still works ...)