Ubuntu Plex does not have local access on other machines

Plex Media Server Desktops & Laptops
1

Server Version#: 1.18.0.1944
Player Version#:

I have Plex installed on a fresh Ubuntu 19.10 install.
Plex player will work on the machine, but I cannot be “local” on any other device on the same network.
I did install Plex on another Windows machine - it works fine as local.

On the Ubuntu machine I CAN access Plex from the windows server 192.168.1.118:32400
On the Windows machine I cannot access Plex on the Ubuntu machine 192.168.1.30:32400

Both machines are on the same Asus router.
I can ping both machines from each other (I can also share files between the 2)

I have Roku and Amazon fire device - Windows Plex shows as Local and Ubuntu Plex shows as Relay

I have completely powered down the network and both machines and re-started them.

2

Relay occurs when there is no direct connection (ports blocked) in most cases.

Check here first and advise?

3

I have the Ubuntu firewall completely disabled.

4

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN 9414/smbd
tcp 0 0 0.0.0.0:8989 0.0.0.0:* LISTEN 1678/mono
tcp 0 0 127.0.0.1:20030 0.0.0.0:* LISTEN 1677/nxserver.bin
tcp 0 0 127.0.0.1:20000 0.0.0.0:* LISTEN 12131/nxserver.bin
tcp 0 0 127.0.0.1:17600 0.0.0.0:* LISTEN 2534/dropbox
tcp 0 0 0.0.0.0:4000 0.0.0.0:* LISTEN 2213/nxd
tcp 0 0 127.0.0.1:12001 0.0.0.0:* LISTEN 3348/nxnode.bin
tcp 0 0 127.0.0.1:12002 0.0.0.0:* LISTEN 12159/nxnode.bin
tcp 0 0 127.0.0.1:17603 0.0.0.0:* LISTEN 2534/dropbox
tcp 0 0 127.0.0.1:25001 0.0.0.0:* LISTEN 3368/nxclient.bin
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 1756/mysqld
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 9414/smbd
tcp 0 0 127.0.0.1:41707 0.0.0.0:* LISTEN 2955/Plex Plug-in [
tcp 0 0 0.0.0.0:10000 0.0.0.0:* LISTEN 3154/perl
tcp 0 0 127.0.0.1:8080 0.0.0.0:* LISTEN 2443/python2
tcp 0 0 127.0.0.1:26001 0.0.0.0:* LISTEN 3348/nxnode.bin
tcp 0 0 127.0.0.1:32401 0.0.0.0:* LISTEN 2902/Plex Media Ser
tcp 0 0 127.0.0.1:26002 0.0.0.0:* LISTEN 12159/nxnode.bin
tcp 0 0 0.0.0.0:8084 0.0.0.0:* LISTEN 1593/mono
tcp 0 0 0.0.0.0:32469 0.0.0.0:* LISTEN 3251/Plex DLNA Serv
tcp 0 0 0.0.0.0:1749 0.0.0.0:* LISTEN 3251/Plex DLNA Serv
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 1309/systemd-resolv
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1511/cupsd
tcp 0 0 127.0.0.1:32600 0.0.0.0:* LISTEN 3248/Plex Tuner Ser
tcp 0 0 127.0.0.1:7001 0.0.0.0:* LISTEN 3348/nxnode.bin
tcp6 0 0 :::5500 :::* LISTEN 2433/clementine
tcp6 0 0 :::445 :::* LISTEN 9414/smbd
tcp6 0 0 :::4000 :::* LISTEN 2213/nxd
tcp6 0 0 :::33060 :::* LISTEN 1756/mysqld
tcp6 0 0 :::139 :::* LISTEN 9414/smbd
tcp6 0 0 :::32400 :::* LISTEN 2902/Plex Media Ser
tcp6 0 0 :::80 :::* LISTEN 1795/apache2
tcp6 0 0 ::1:631 :::* LISTEN 1511/cupsd
tcp6 0 0 ::1:7001 :::* LISTEN 3348/nxnode.bin

5

It’s binding to IPv6, not IPv4

Please try netstat -an | grep 32400 and see where we’re at.

I had another report of PMS binding on IPv6

If you have IPv6 enabled on your host, please disable it. PMS doesn’t use V6

This failing, we will manually add a hidden preference to force it off

6

The Preference to add to the XML in Preferences.xml:

EnableIPV6="0" to force it to remain off.

Should this NOT work, please let me know immediately

7 
netstat -an | grep 32400
tcp        0      0 192.168.1.20:46468      73.247.6.8:32400        ESTABLISHED
tcp        0      1 192.168.1.20:33662      192.168.0.5:32400       SYN_SENT   
tcp        0      1 192.168.1.20:58476      192.168.1.118:32400     SYN_SENT   
tcp        0      0 127.0.0.1:35966         127.0.0.1:32400         ESTABLISHED
tcp        0      0 127.0.0.1:35978         127.0.0.1:32400         ESTABLISHED
tcp        0      0 192.168.1.20:34604      192.168.1.20:32400      ESTABLISHED
tcp        0      0 127.0.0.1:35954         127.0.0.1:32400         ESTABLISHED
tcp        0      1 192.168.1.20:55336      192.168.1.4:32400       SYN_SENT   
tcp        0      0 127.0.0.1:35972         127.0.0.1:32400         ESTABLISHED
tcp        0      1 192.168.1.20:33668      192.168.0.5:32400       SYN_SENT   
tcp        0      1 192.168.1.20:58470      192.168.1.118:32400     SYN_SENT   
tcp        0      1 192.168.1.20:55342      192.168.1.4:32400       SYN_SENT   
tcp        0      1 192.168.1.20:42624      192.168.2.1:32400       SYN_SENT   
tcp        0      1 192.168.1.20:42618      192.168.2.1:32400       SYN_SENT   
tcp        0      0 127.0.0.1:35952         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 192.168.1.20:46484      73.247.6.8:32400        ESTABLISHED
tcp6       0      0 :::32400                :::*                    LISTEN     
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35944         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35946         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35948         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35972         ESTABLISHED
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35954         ESTABLISHED
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35958         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35966         ESTABLISHED
tcp6       0      0 192.168.1.20:32400      192.168.1.20:34604      ESTABLISHED
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35950         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35964         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:35978         ESTABLISHED
8

And I have no clue how to disable IPv6 on Ubuntu…

9

I modifed the XML file.

netstat -an | grep 32400
tcp        0      0 127.0.0.1:33900         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 127.0.0.1:33912         127.0.0.1:32400         TIME_WAIT  
tcp        0      1 192.168.1.20:38922      192.168.1.118:32400     SYN_SENT   
tcp        0      0 127.0.0.1:33936         127.0.0.1:32400         ESTABLISHED
tcp        0      0 127.0.0.1:33934         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 192.168.1.20:49026      192.168.1.20:32400      TIME_WAIT  
tcp        0      0 127.0.0.1:34076         127.0.0.1:32400         FIN_WAIT2  
tcp        0      1 192.168.1.20:38924      192.168.1.118:32400     SYN_SENT   
tcp        0      0 192.168.1.20:55630      73.247.6.8:32400        ESTABLISHED
tcp        0      0 127.0.0.1:33958         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 127.0.0.1:33940         127.0.0.1:32400         ESTABLISHED
tcp6       0      0 :::32400                :::*                    LISTEN     
tcp6       0      0 127.0.0.1:32400         127.0.0.1:34076         CLOSE_WAIT 
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33754         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33716         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33782         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33936         ESTABLISHED
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33794         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33750         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33948         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33906         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33746         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33760         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33776         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33764         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33806         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33752         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33940         ESTABLISHED
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33910         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33718         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33762         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33748         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33798         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33680         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33682         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33744         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33934         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33928         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33920         TIME_WAIT  
tcp6       0      0 127.0.0.1:32400         127.0.0.1:33914         TIME_WAIT
10

I disabled IPV6 in Ubuntu using GRUB

netstat -an | grep 32400
tcp        0      0 0.0.0.0:32400           0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.1:32400         127.0.0.1:53378         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53172         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53188         TIME_WAIT  
tcp        0      0 127.0.0.1:53816         127.0.0.1:32400         FIN_WAIT2  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53358         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53152         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53264         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53220         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53196         TIME_WAIT  
tcp        0      0 192.168.1.20:49704      73.247.6.8:32400        ESTABLISHED
tcp        0      0 127.0.0.1:32400         127.0.0.1:53676         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53672         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53816         CLOSE_WAIT 
tcp        0      0 127.0.0.1:32400         127.0.0.1:53098         TIME_WAIT  
tcp        0      0 127.0.0.1:53702         127.0.0.1:32400         FIN_WAIT2  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53268         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53702         CLOSE_WAIT 
tcp        0      0 127.0.0.1:53696         127.0.0.1:32400         ESTABLISHED
tcp        0      0 127.0.0.1:32400         127.0.0.1:53386         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53150         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53398         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53206         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53174         TIME_WAIT  
tcp        0      0 127.0.0.1:53716         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53100         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53684         TIME_WAIT  
tcp        0      0 127.0.0.1:53398         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53404         TIME_WAIT  
tcp        0      0 127.0.0.1:53354         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53354         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53680         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53674         TIME_WAIT  
tcp        0      0 127.0.0.1:53356         127.0.0.1:32400         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53686         ESTABLISHED
tcp        0      0 127.0.0.1:32400         127.0.0.1:53272         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53166         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53388         TIME_WAIT  
tcp        0      0 192.168.1.20:41722      192.168.1.20:32400      TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53612         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53410         TIME_WAIT  
tcp        0      0 127.0.0.1:53686         127.0.0.1:32400         ESTABLISHED
tcp        0      0 127.0.0.1:32400         127.0.0.1:53168         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53688         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53484         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53696         ESTABLISHED
tcp        0      0 127.0.0.1:32400         127.0.0.1:53208         TIME_WAIT  
tcp        0      0 127.0.0.1:32400         127.0.0.1:53170         TIME_WAIT  
unix  3      [ ]         STREAM     CONNECTED     32400    /run/dbus/system_bus_socket
11

Now it looks good.

The rest of the reasons you’re not able to see it locally is firewall / subnet / something local.

I can see Plex/web reaching out to another machine.

May I have the ZIP logs, collected 3 minutes after restarting PMS ?

One thing you can add to Preferences.xml is EnableIPv6="0", save and restart.

This will change most of the bindings.

12

Adding:

I just reproduced the TCP v6 problem.

I have flagged it Critical and submitted to Engineering, complete with all the data.

13

I had a nice chat with one of the Engineers.

It is starting to look like a problem with the bundled app in 1.18.0 (Plex/web).
The server appears ok and explains why we see it continue to run when inaccessible via the browser.

I will see if there’s a way to decouple the bundled web app from a previous version so we can get you working at least temporarily .

The primary issue is at setup time.

14

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