Having problems here too. Some sites are working as normal and other sites won't even load. Very strange.
Same for me too. Kicked me off from xbox live at about 1730hrs. Had browsing problems since. Had to use Personal Hotspot on my iPhone for a site earlier as my BB wouldn't load it.
In their defence, it usually is a very good service with rare issues.
Hopefully will be sorted sooner than later though.
i would rather have Broadband which works instead of a speed increase! Nice to see a Virgin advert on tv just now explaining how they have the fastest broadband in the uk