Soldato
One other thing I just remembered sometimes the extreme decides it can't be detected but switching to other band and then running the airport utility it is instantly detected e.g. if I'm connected to the 5GHz band I switch to the 2.5GHz and hey presto it'll appear in the airport utility and vice versa. Might be worth a try.
Noted:
Will have another try with my mate tonight, if not maybe book a genius meeting at Milton K's Saturday morning and see if they can shed any light...
They might offer to replace even though it's old as I have heard some nice stories about their support..
Thanks for the tips


Honesty is the best policy