Enabling Remote Access on D6220

> Model: D6200|Dual Band 11ac ADSL Modem Router

   Firmware version?  Connected to what?

> [...] I've followed all the steps on the Netgear website [...]

   Thanks for the helpful link.  I'd guess that there are many thousands
of "steps on the Netgear website".

> [...] I am unable to access due to safety concerns. [...]

   "safety concerns"?  Care to elaborate on that?

   "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.  Copy+paste is your friend.