At a guess the local copy of the record in your DNS cache has expired and been recached.
Thats why I disabled the DNS client service on Windows as I used to get this a lot.
Virgin (ADSL) => Namesco => Newnet => O2 => Plusnet => Zen => Newnet => Zen Lite 8000
Note: I don't lay turf for anyone. astro or otherwise, all views and opinions expressed are my own based on experience.
Edited by techguy (Sat 10-Mar-12 14:39:19)