R6700 Port Forwarding Not Working

> I have tried numerous times to get any of my ports to open on my
> router, [...]

   Why?  Which ports?  What feeds "my router"?  Is it something simple
(like a modem), or another router?  (Is the WAN/Internet IP address of
the R6700 a private or public address?  If in doubt, report at least the
first two octets ("a.b" out of "a.b.c.d").)

> [...] despite many different efforts to get them open,

   That non-description conveys no useful information about what you
did, or what happened when you did it.  Standard port-forwarding
preface: In my experience, people who talk about ports being "open"
often don't understand the problem.  A port looks "closed" when there's
no server program (or device) listening at that port.  All the port
forwarding in the world won't help you if, at the end of the line, no
one is listening at that port number.

>  I have had no success.

   "success" determined how, exactly?

> -Standard port forwarding

   Actual port-forwarding rules?  Are you doing something (like, say,
address reservation) to ensure that then target device has a reliable IP
address?

> -Restarting router

   Probably wise.

> -Allowed access through firewalls
> -Disabled all firewalls

   Allowed what, exactly, through which firewalls where?

> -Enabling a DMZ

   Often a last-ditch option.  Less access control that way.

> I also have run programs that require certain ports to listen while
> testing them so I know that is also not the issue in this case.

   You lost me.

   Assuming that you're running some server program on some system which
listens to the ports of interest, can you contact that server from a
system within the LAN?  If local access fails, then access from the
outside world hasn't much of a chance.