360 Update Error

[Shift]

Turned my 360 on for the first time in awhile to be greeted by an update, but the damn thing wont download.

 

Its signing me in to LIVE, so it cant be a network error and past updates have downloaded and installed just fine, and i havent touched my network settings since the last update.

 

Ive tried the 360 support site, but its as much use as a wet towel.

 

Is their a way for me to burn this update to a disk?

 

Any help welcome.