D6220 - wifi not working but ethernet working

> D6220 has power light and ethernet light but wifi not working. [...]

   Which one is "ethernet light"?  What does Netgear call it?

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual (at least).  Read.  Look for the
LED descriptions and "Troubleshoot".  Pay particular attention to the
"WiFi On/Off button with WiFiLED".  Did you press it?  Further reading
might not hurt, either.

> [...] Cannot get the router to do firmware update past V1.0.0.52.

   "Cannot" 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.

> Can't find support anywhere online for Australia for Netgear

   Regarding "Can't", see "not a useful problem description [...]",
above.  Where did you look?  http://support.netgear.com/ ?