Web Interface no longer available

Server Version#:1.18.4.2171 (I think as I can’t log in)

This is a weird one. Between yesterday and today I haven’t been able to get onto the Plex web interface. When I use the on my phone it shows off line.

I’ve restarted the plex media server (and web station just to be safe) and I can see it scanning files ok but the server just doesn’t seem to be talking to anything. I try to connect by http://ipaddress:32400/web and all I get is the web browser spinning. (tried chrome on two different computers)

No patches have been applied to the box.

Could someone tell me what logs to look at and what to look for to figure out what is going on?

Only errors I could find in Plex Media Server.log

Mar 19, 2020 02:33:19.443 [0x7f59b3090700] DEBUG - MyPlex: We appear to have lost Internet connectivity, resetting device URL cache.
Mar 19, 2020 02:33:19.443 [0x7f59b3090700] ERROR - EventSource: Retrying in 15 seconds.
Mar 19, 2020 02:33:34.464 [0x7f59b3090700] DEBUG - EventSource: Resolving 184.105.148.113 port 443
Mar 19, 2020 02:33:34.464 [0x7f59b3090700] DEBUG - EventSource: Resolved 184.105.148.113 to 184.105.148.113
Mar 19, 2020 02:33:34.567 [0x7f59b2da2700] DEBUG - EventSource: Connected in 69 ms.
Mar 19, 2020 02:33:34.567 [0x7f59b2da2700] DEBUG - EventSource: Wrote data, reading reply.
Mar 19, 2020 02:33:54.464 [0x7f59b3090700] DEBUG - EventSource: Failure in IdleTimeout (0 - Success).
Mar 19, 2020 02:33:54.464 [0x7f59b3090700] ERROR - EventSource: Retrying in 30 seconds.
Mar 19, 2020 02:34:00.557 [0x7f5994e31700] DEBUG - Butler: Starting delayed task ReverseGeocode.
Mar 19, 2020 02:34:10.747 [0x7f599688f700] DEBUG - The butler processed 0 files for reverse geocoding

Thank You

Hi, @vulcanatf,
This might sound stupid but did you try to access the Plex server locally with a local IP 127.0.0.1:32400/web
This method works perfectly for me if I lose connection.

Hi @DanishSummerKing this is a Synology NAS device. I will see if I can get a web browser onto it but I suspect not.

I do have a ssh command line that I can use if you have something you can suggest along those lines.

Hi again,
I guess you could try this ssh command, # ssh -L 8888:127.0.0.1:32400 [ip address of server]
I am using windows server 2019 -core myself so it’s a bit different setup.

What is the main issue, is it because you cannot watch movies from outside your local network or what do you want to achieve with this.

I know a lot of others including myself has an issue with our routers and plex services suddenly stopped working, in my case, it was UPnP on the router that stopped working, what I did to resolve it was to disable it since I have a firewall that can control that role, but what you could do is disable it, restart your router and enable it and see if it solved the problem.

Ah I think you are misunderstanding.

I’m on the SAME network as the device. No firewalls involved. I’m trying to connect to it directly to control it. It is just not responding on the web interface at all.

On my work computer I have set up putty to port forward to the device and that has previous worked but is not working right now. So that is 2 chrome browsers that aren’t working 1 on the home laptop on the same subnet as the device and 1 on the work computer going through a ssh tunnel.

The phone I had trying to talk to it was also on the same subnet as the device (using the house wifi) I don’t actually expose the plex system outside of the home network.

May I be of assistance?

Ahh okay, I see, have you recently updated to a newer software version of plex?
You should have other versions laying around that you can roll back to, otherwise I’m sure @ChuckPa should be able to assist you, he seems to be helping a lot of members with these issues.

Best regards.

@vulcanatf

May I see the full log ZIP please for confirmation of what I suspect?

The snippet you show (which isn’t enough in 99% of the cases) is showing me that the Syno isn’t able to reach out to Plex.tv (“EventSource:” errors)

The logs will help me to see if it’s the entire network or something else.
In most cases like this, it’s usually a LAN network issue (Syno -> Modem/router -> ISP) problem where the network config has changed and needs correcting.

Please let me know if you’re using a VM or container on the Syno or the native App?

I’m using the native app on the Synology.

plexlogs.tar.gz (3.9 MB)

There is a newer version available that I can try to upgrade to (1.18.5.2309)

I just didn’t want to do that with it in a broken state in case it makes things worse.

Thanks for the logs.

First, there is no need to upgrade software at this time.
There are no glaring errors in your logs.

I do request you perform the following:

  1. Stop Plex
  2. Let it sit a minute for all to quiesce
  3. Start Plex
  4. Let it sit another 2 minutes so the Syno and Plex.tv can synchronize and again quiesce
  5. Attempt to open the Web UI directly on the Syno LAN IP address as normal (don’t use app.plex.tv)
  6. Download the ZIP again and attach
1 Like

Here are the two log files that seem to have changed
plexlogs2.tar.gz (90.5 KB)

If it helps the port appears to be open but plex is not responding (I’m not sure what it should respond with but I figure a standard web request should get a response)

Attempt using Telnet on Plex’s port
# telnet 192.168.11.7 32400
Trying 192.168.11.7…
Connected to 192.168.11.7.
Escape character is ‘^]’.

get

exit
^]
telnet> close
Connection closed.

Attempt to connect to a web server on the same machine
# telnet 192.168.11.7 80
Trying 192.168.11.7…
Connected to 192.168.11.7.
Escape character is ‘^]’.

get
HTTP/1.1 400 Bad Request
Server: nginx
Date: Thu, 19 Mar 2020 17:18:56 GMT
Content-Type: text/html
Content-Length: 150
Connection: close

400 Bad Request

400 Bad Request


nginx Connection closed by foreign host.

Please recreate the logs… You only gave me 2 files.

Here is the entire log directory again
plexlogs3.tar.gz (3.9 MB)

Let’s do this a bit more extreme.

Restart DSM

A normal DSM shutdown & restart from the DSM controls.

After it comes up,
Let it sit a couple minutes for PMS to start and stabilize again.

Whatever is wrong (if PMS itself) will show as it starts up.

Then grab one more set of logs.

Rebooting the entire box got it. Weird that it got into that state but nothing else on the box was affected.

Thank you very much for all your help

DSM occasionally gets an update which makes it act weird.
Linux doesn’t need be restarted often but this must have been one of those cases where they updated one of the kernel libraries.

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