My colleague and I have a strange issue where certain sites give us a "DNS error - cannot find server" error. We share an office with a friend and his PC, connected to the same router is able to view all these options without any issues whatsoever.
I ping the sites and they dont exist. Some sites were visible and arent now. Its the same with Firefox, IE7 and Chrome.
I have quite a few firefox plugins including Xmarks as well as Dropbox installed. I did have Kaspersky 2009 installed but someone told me to uninstall it to fix the issue which I did. Unfortunately I cant find the disc so have installed AVG for the time being. I have also removed Xmarks but still get the same issues.
Any help gratefully appreciated