Hi Richard. My name is***** you for your question and the opportunity to assist.
I don't know if you've seen this: http://www.downloads.netgear.com/files/GDC/WN604/WN604_UM_5June2014.pdf
In my opinion these are very good instructions from Netgear on how to set up the AP.
Take a look and let me know if there are still issues and I can help out.