The very first reply to this problem will work for most cases.
The router might need to be reset, PRESS the RESET until the green button flashes or they all flast (Depending on the router you have. Sky Box: Disconnect the little black box for the Internet connection from the Sky box, power down the Sky box and wait for 15seconds to allow it to power down completly, then reconnect the Internet box to the Sky box, Power the Sky box up and wait for it to start up (might take a few minuter) and hopefully the second light on the Sky Internet box will flash and reconnect to the Internet.
If you have reset your router and rebooted your Sky Box then you will have to contact Sky. Either your router is faulty or the Sky Internet box on the Sky box is. However, if it does not work the first time round it may be worth trying it again, but this time allow everything to power down, wait 30 seconds before starting up the Sky router and the Sky box again and following the above. It worked for me after trying everything else I found on the Internet. Some of them were complicated and didn't work, so powering everything down and resetting the router worked. After resetting the router, I let it power down completly before powering it up again.
It was so frustrating trying to fix this problem, it all started with a drop out in the Internet, the router took a funny turn and the Sky box would not connect again. It takes about ten minutes to power down and reset the router and power down the sky box and wait for it to start up again, but 9/10 it will work.
You might have to reset your permissions on your router after you reboot it, depending on the router you have. But that is not hard to do as the most common router will load up with that page anyway, so set them first in case you forget and your teenager can't get his porn site to load lol.
