(...) To extend the list of resons: They might have changed the IP to the servern in the primary DNS and your computer alt. your DNS haven't got it yet. (24 years ago, 15-Sep-00, to lugnet.off-topic.geek)
(...) This is probably it in this case. But there's another possibility too: The website name could actually point to multiple web servers, which might be updated at different times. You could even be redirected to different addresses depending on (...) (24 years ago, 15-Sep-00, to lugnet.off-topic.geek)
