Hi, Yesterday NTL were updating the Servers which should have just cut out the use of E-mails, leaving the internet untouched (for most people).
I got the same result as you and assumed it was NTL updating and not a problem with my settings.
However, I also found that I could not get on to the internet all day. My daughter, who is also on NTL could still get on the internet although not receive E-mails.
This morning I switched off the set-top box and let it start up again with the PACE message and, Lo! and behold, everything is back to normal.
I can only assume that when NTL switch off the service for a short while, it also disconnects the modem inside the set-top box so that CorrectConnect cannot find any servers at all.
This could be something to bear in mind for the future for all people with NTL and a Set-top box.