Sorry to bother you all, but i am posting on behalf of a friend (So info may not be 100% accurate)

from what i have gathered he seems to be totally unable to get on MOST (Not all) "Register/Sign in" pages (Including this one) this seems to be effecting every computer on his network so he/I can only assume it is a network problem.

It also effects mmi icon info pages, it also effects certain parts of websites for example

http://www.jet2.com/

As you can see the "Booking" box to the left all he can see is a 404 error. On top of that it effects some advertisement banners also.

Sorry for the vagueness of the problem but me & him are stumped on the situation. Thank you in advance for any help