There is one of these sets of messages every 20 seconds!
The device at 192.168.0.245 is a security camera! Why is Plex attempting to retrieve and parse an SSDP schema for this device continuously? The device discovery messages are also flooding the network. Why? How can I stop this behavior?
Something called the “NetworkServiceBrowser” is initiating these SSDP queries. I’m guessing that how the server finds client streaming devices. (I can see where it queries one of the Fire TV Cubes.) I also note that the security camera seems to respond to these queries (HTTP 200), but that the content is not what’s expected. I would guess, again, that because it responded, the NetworkServiceBrowser tries again to get a usable reply. So, somewhere during the initialization process, the server must have launched an SSDP query to find all of the supported devices, although it’s not clear why it would do that, since it has a list of authorized devices.
I think it is looking for network tuner like an HDHomerun and your camera I guess are using similar protocol like a tuner would. I made a report that it is trying too much.
I am getting a similar item but it’s hitting an IP that isn’t even in use. My IPs are all in the 192.168.254.0-254 range, nothing in the 192.168.0.# range.
I was able to stop the blizzard of messages by turning off UPnP in the security camera. Had to find the hidden menu, but once I got in it was obvious. Turned off some other suspicious stuff, too. Now that I’ve got a log with lot less garbage, perhaps I can figure out why Plex skips the first scheduled recording each day (and schedules some for the wrong times).
KnightCat83: Plex must have found that device somehow in response to an SSDP poll. One of the surprises I’ve uncovered is that some IoT devices have two MAC addresses and set up their own network on one that’s hidden. However, that shouldn’t be visible on your primary network unless your Plex server has multiple LAN connections. There’s also the possibility that the 168.0 network is somehow accessed through a router on your network (a scary thought). The XML suggests that it’s a device that responds to automatic WPS network connection.
