Related to the issues I and many other people have been having with the Sky/Netgear router having an inconsistent connection to the net, Sky are rolling out a firmware update to address this and other issues. Currently not all exchanges have the update yet; the current firmware is 1.02.28 and the new one is 1.03.87. You can check to see what firmware you have on the main landing page of your own box.
SkyUser.co.uk are going to be getting their hands on the file direct from Sky, hopefully some time this week, so those that haven’t had it roll out automatically yet can update if they want to. As soon as its available I shall upgrade my router and let you know how it goes. The instructions for manually updating are here if you want to give it a go yourself.