Weird: can't connect to some websites

[Shallow_Grave]

Hi, I have tried from two windows PCs and one Ubuntu and can't connect to these websites:
windowsupdate.microsoft.com/
swiss.com
www.neilson.co.uk/
I can not even ping them "ping www.swiss.com"

I turned off all firewall settings etc on router/adsl and still nothing works.

Any ideas? Can't even guess.rolleyes

[chaimjm]

The sites all work okay. I am sure you did not add them to your Restricted Site list

[Shallow_Grave]

No, not on two PCs and a brand new installation of Ubuntu too. Must be either router or network but these haven't changed for 3 years and all of a sudden a problem... it doesn't make sense.