"Limited" Access to server when on the same local network

Plex Media Server NAS & Devices
1

Server Version#:1.19.3.2843-e3c1f7bcd
Player Version#: 1.11.0.1215-1d8c460c

Hello every one, I have trouble with my setup while on LAN
Basically I can’t have a direct connection when I am on the same lan as my server…
If I pass by a vpn on the client, or if I am outside my house I have no issues.

Here is my setup.
One router, all devices connected to it.
The server runs on an ubuntu server instance within docker. Ports are open on host and port redirection on router are also done. The server has a url that with my own domain name that forwards traffic to my plex instance.

Out of the house, I have no issues.
Inside the house plex can’t connect directly (all of plex client apps) if I reach my plex via browser it works as a direct connection without any issues. If I ping my router via domain name or via ip it is reached directly. I also setup a DNS server on my router to redirect traffic to my plex as an added measure but it does not work.

So I am stuck and I have no idea what to do… :frowning:

please help me
Thanks

2

firewall.

you will need to tell UFW to open up the LAN ports.

3

Thanks I’ve seen this, UFW is disable does it mean I should enable it and then open the ports ?

4

Is your LAN comprised of multiple subnets or is it all one (flat) subnet?
If ufw is off, the next suspect is another subnet (which qualifies as remote - which leads to indirect because Remote Access isn’t enabled)

5

Hey man you were right the second router was not using upnp and therefore didn’t open the ports ! Now it’s fixed and works perfectly ! Cheers and thanks !

6

Hi… sadly I have to reopen this… It bums me SO much.
So it worked great up until one hour ago. It just stopped… all of a sudden I was listening to music and bam nothing all gone I can’t reach the local server anymore and still can reach it from outside.

I changed NOTHING since it was working before, literraly nothing I’ve been watching a movie on it and no issues but now all of sudden GONE

I REALLY do not understand this

Can someone explain me REALLY simply how the local discovery works and if (please) there is a way to specify my local ip somewhere directly so I’ll be done with it.

I just need a simple menu saying:
Enter here your plex local IP: XX.XX.XX.XX and it would work and I’ll just deactivate the damn discovery that is utter garbage IMO…

I’m pissed

7

Let’ unwind and go back to the basics.

LAN IP of the server?

LAN IP of device(s) you’re trying to access from?

LAN IP of the modem/router/gateway device.

8

Here it is

LAN IP of the plex server: 10.0.4.100 (fixed)
LAN IP of the device I want to access plex: 10.0.4.130 (fixed)
LAN IP of the router: 10.0.4.1

(Other router above my router: 192.168.1.1)

My router is connected to the ISP router and in a DMZ (sadly can’t put the ISP router as bridge)

9

so you have ISP -> 192.168.1.x -> 10.0.4.x ?

10

Yes correct, the only thing the ISP router sees is my router

12

I found the issue… I was running with a wrong network on my docker instance !!

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