Hi Matt,

Many thanks for the response. Your process is the one I've already tried with no success. I also tried a so-called 'Network Reset' as documented on the avsforums site (effectively the same as you suggested but using presets 1 & 3 instead) - the end result is exactly the same in either case though - I am forced through the full setup wizard but all my existing presets are still intact and the error message remains after I've completed this.

Can't see why it has any issue with it though as all other network functionality remains good (airplay, the net radio presets I'd already configured) - it's just the web control of that one element. Bizarre!