CHANGE NETWORK NAME ON MACBOOK

> How do I rename it to something more specific??

   First, a wireless-network name (SSID) is set on the wireless
(modem+)router, not "ON MACBOOK".  The computer (or other device) simply
shows you the name which is configured on the router.

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual.  Look for "Specify Basic WiFi
Settings".  Further reading might not hurt, either.