Double NAT Setup for Accessing Plex Outside of LAN

General Discussions
1

Trying to access Plex from outside of my network and I’m confused beyond belief.
Have a double NAT situation going on.

Equipment I have: Arris NVG599 gateway through AT&T and Netgear Nighthawk R8000 router.
I have disabled all wifi radios on the Arris and have also set “IP Passthrough” to on.
I tried setting up port forwarding using the manually specified port of 32400 in Plex, but still couldn’t gain access outside of my network.
Definitely a novice when it comes to networking and the lingo, but am tech savvy enough to follow instructions on how to get this setup properly if someone has dealt with this before!

Thanks

2

The easiest solution for a double NAT situation is to reconfigure one of the two routers to be in bridge mode so you end up with one router only

Normally one would get the ISP to reconfigure their modem/router to be in bridge mode and act as a modem only and then you have your own router where you would setup the port forward and have it as a DHCP server and for wireless access

3

This led me to the correct path to find how to setup bridge mode on my ISP’s gateway and ultimately solve the problem.
Much appreciated, thanks a lot!

4

I have a double NAT and forwarding the port 32400 on both routers also seems to work fine

5

@titeishon said:
I have a double NAT and forwarding the port 32400 on both routers also seems to work fine

I’m having a similar problem and have so far been unable to bash it into submission.
I’ve tried:

Port forwarding port 12345 on Router #1 to ip address of Router #2
Port forwarding 32400 on Router #2 to ip address running plex server.

i’ve also tried setting the computer running plex server into the dmz and that didnt work either.

6

You have to use the same port on router 1 and 2, i.e. If you use port 32400 on router 2 you need to forward port 32400 from router 1 to router 2.

7

@adetia9@gmail.com said:

@titeishon said:
I have a double NAT and forwarding the port 32400 on both routers also seems to work fine

I’m having a similar problem and have so far been unable to bash it into submission.
I’ve tried:

Port forwarding port 12345 on Router #1 to ip address of Router #2
Port forwarding 32400 on Router #2 to ip address running plex server.

i’ve also tried setting the computer running plex server into the dmz and that didnt work either.

That won’t work.
You either need to do one of the following:
Port forwarding port 32400 on Router #1 to ip address of Router #2 on port 32400
Port forwarding 32400 on Router #2 to ip address running plex server.
Set port 32400 in Plex server manual ports (or don’t use the manual ports option)

Hypothetically speaking using port 12345 as an example:
Port forwarding port 12345 on Router #1 to ip address of Router #2 on port 12345
Port forwarding 12345 on Router #2 to ip address running plex server.
Set port 12345 in Plex server manual ports (or don’t use the manual ports option)

You need to be consistent in forwarding the ports through the chain. In your example you forwarded port 12345 to the second router but had it listening for port 32400 so it would never receive any packets.