PMS sending out discovery packets every 10 seconds

I’ve noticed that PMS is recording a WARN in my logs every 10 seconds. I’ve pasted a few of them below (I x’d out my IP):

Feb 12, 2017 07:10:34.792 [0x7fb18f3ff700] WARN - NetworkServiceBrowser: Error sending out discover packet from xxx.xxx.xxx.xxx to 239.255.255.250: Operation not permitted
Feb 12, 2017 07:10:44.785 [0x7fb18f3ff700] WARN - NetworkServiceBrowser: Error sending out discover packet from xxx.xxx.xxx.xxx to 239.255.255.250: Operation not permitted
Feb 12, 2017 07:10:54.785 [0x7fb18f3ff700] WARN - NetworkServiceBrowser: Error sending out discover packet from xxx.xxx.xxx.xxx to 239.255.255.250: Operation not permitted
Feb 12, 2017 07:11:04.785 [0x7fb18f3ff700] WARN - NetworkServiceBrowser: Error sending out discover packet from xxx.xxx.xxx.xxx to 239.255.255.250: Operation not permitted

The warnings don’t seem to be effecting my ability to stream from the server, but it’s a bit cumbersome to see this much unnecessary I/O.

A little bit about my setup:

  1. I’m running the latest PMS version
  2. This is a remote only system, I have it hosted by hosting company
  3. The OS is Ubuntu 16.04
  4. I have blocked any unnecessary ports using iptables, I can post my iptables rules if needed
  5. Both GDM and DLNA are disabled in the settings, I’ve also added BonjourEnabled=“0” to Preferences.xml
  6. IPv6 support is disabled

Has anyone run into this? Not sure if there’s some other setting I need to alter to get the PMS to stop sending out these packets. If you can help I would really appreciate it, thanks!

please show the results of ifconfig and netstat -rn.

If you are concerned of privacy, please PM and add the link to this thread.

PMS doesn’t use multicast

Thanks for helping! I sent you a PM with the output of the commands you asked for.

Thanks, now please create the logs (Settings - Server - Help - Download Logs) and PM that ZIP file.

From what you’ve shown me so far, it looks like the obfuscated IP wants a multicast reply…

Sent you the zip. Plex Media Server.1.log and Plex Media Server.2.log have verbose logging info in them.

Those messages are filling your log because SSDP is blocked by your iptable rules.

Hey guys, sorry was out of town for a few days. How do I unblock SSDP? A quick search said that SSDP transmits on port 1900, so I unblocked that but it didn’t seem to have any effect. Is there something else I need?

@chiviak said:
Hey guys, sorry was out of town for a few days. How do I unblock SSDP? A quick search said that SSDP transmits on port 1900, so I unblocked that but it didn’t seem to have any effect. Is there something else I need?
Private message myself and Chuck your UFW config file.