An error occurred while updating the configuration airport express
Eventually, back to the error message copied above, ie."An error occurred...."Any tips as to where I'm going wrong gratefully received. I had a look through the Billion's settings, and came across a section called WDS.
I've got internet flowing most of the time, but seems a little unstable, and for some reason the Extreme 802.11n and the Billion seems to restart themselves now and again.
Now here's a bit I'm not sure of, but I've tried it with and without anyway and it doesn't seem to make a difference.
But I go into the Internet icon and for Connection Sharing I choose 'Off (Bridge Mode)'.
I assume Ethernet Unplugged is no problem because I have the Billion hardwired to the phone point.
The Default Settings doesn't seem to be an issue as I'm about to change settings.
I haven't been using the set up long enough to work out what triggers those events.