Plex accessible from my public IP but not from applications

Plex Media Server Remote Access
1

Server Version#: 1.32.5.7349
Player Version#: any

I have a Plex Media Server hosted on my own computer. I’m using a Freebox Pop which use NAT-PMP. With this internet provider, my IP is used by 3 other peoples so I just have a certain range of available ports (and 32400 isn’t in).

I had to open my port 45000. I have a nginx reverse proxy which points to 32400.

Here is my problem :

My family and I don’t have any problems to access Plex from my public IP and the port 45000. It works great.

However, I cannot access to my server from mobile app or TV app … Remote access does not work (I have a cross between public IP and Internet).

Also I have these logs

MyPlex: Toggling server publish state.
stop public ip check and mapping - current mapped state: ‘Mapped - Not Published (Not Reachable)’.
…

My IP address is completly reachable from outside.

Does anyone know what is the problem ?

Thanks

2

You need to publish the IP (or domain name) and the port number under which your server is actually reachable from the outside.
At the moment, plex.tv thinks your server is accessible under the default port number of 32400.
You must tell Plex the public IP and port of your nginx instance.

https://support.plex.tv/articles/200289506-remote-access/
“manually specify public port”

https://support.plex.tv/articles/200430283-network/
“Custom server access URLs”

(if you are using an own domain name, you need to have a publicly trusted security certificate which is “pinned” to that domain. If not, you cannot use secure connections and need to allow unsecure client connections in your server settings. i.e. set “Secure Connections” to “preferred” instead of required.)

3

Thanks for you answer. My provider gave me a fullstack IPV4 during the day, so I’m now able to use the port 32400.