The IP address for nsxcb.co.uk is 74.208.125.94.
Here's a technical bit;
Open a command prompt on your computer. Type in 'nslookup nsxcb.co.uk' and press enter.
You should get the ip address as above.
If you don't type in ipconfig /flushdns, and repeat the test above.
It may be you have a router that is caching the old address, and has not downloaded the updated one.
The ipconfig /flushdns clears the cache on your computer. If this still fails, reset your router.
If your fear of staying alive, outweighs the thrill of making the corner, brake.