WiFiN300

[MJS2]

I have moved country and Internet address and want to connect my extender but can't find my model and can't work out out to add it, can anyone help?

[plemans]

the label on the extender will have the model number on it. 

There's a support site with access to manuals, firmware, install guides, etc.
Go to https://www.netgear.com/support/
Type in your model number and from there it'll take you to the above.
Its a great resource to start with.