We have had multiple reports of customers being unable to access their websites on several different servers, the common thing between all of the reports has been that the customer’s ISP was BT. We have found all customers reporting a problem have been able to access their website via proxy servers, such as www.hidemyass.com.
It appears BTs DNS servers are proving information that is over 72 hours old, and due to some work carried out over the weekend on our DNS this is meaning some users are unable to access our servers. A solution can be found by using OpenDNS – www.opendns.com – which bypasses BT’s faulty DNS system allowing you to load sites as normal.
Feel free to open a ticket about this issue if you need help with the workaround.