Still no go and I am unable to create a log-in a/c at Netgear at the moment.
Small improvement after many attempts, that is I have progressed from just the computer connecting to the Extender but with no access.
If I bring up my "network map" in Windows I see the following:-
Computer is connected to the network - the network is connected to the Extender - the Extender is connected to the "ADSL Box" but between the ADSL Box and the Globe of the Internet there's "No Access"?
If I hover over the icons of the "Extender" and the "Box" the MAC address is the same. Wits end and close to trashing it... Anyone please?
Nokia 8 vs Galaxy S8