DOCSIS No WiFi to Laptop

> Model: C3700|N600 Cable Gateway Docsis 3.0

   Is that accurate?  Not a C3700v2?  Look at the product label.

> My new HP laptop is unable to connect to WiFi. [...]

   "unable" is not a useful problem description.  It does not say what
you did.  It does not say what happened when you did it.  As usual,
showing actual actions (commands) with their actual results (error
messages, LED indicators, ...) can be more helpful than vague
descriptions or interpretations.

   Visit http://netgear.com/support , put in your (actual) model number,

and look for Documentation.  Get the User Manual.  Read.  Look for
"Troubleshoot".

   Is your (unspecified) "My new HP laptop" the only device with this
problem?