The general set-up is there are two PCs connected via ADSL broadband (PIPEX), the first has a modem/router so the second can connect wirelessly.
There is a third computer still connecting via Virgin dial-up. All three computers run Windows XP, and have the usual spyware/virus prgrams. (Ad-aware, AVG, windows firewall, spybot, spywareblaster).
The website in question is livejournal.com. For a while all three computers could access it fine, but recently the two connected by broadband both stopped. We get 'Cannot find server'. However, the computer without broadband can still open the page no problem.
I've tried looking for new programs that may have been added, as well as new add-ons, but so far I've come up with nothing bar one new add-on which I've now disabled. I've also run our anti-virus/spyware programmes, and come up clean.
Can anyone suggest anything I should try checking/re-installing? Or is this likely to be something connected to PIPEX itself?
Any help would be greatly appreciated, thank you!