# Cannot disable SSDT **URL:** \ **Category:** Remote Access\ **Tags:** server-linux, networking\ **Created:** [August 13, 2019, 10:55pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561 "2019-08-13T22:55:03Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![mgaude](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@mgaude](https://forums.plex.tv/u/mgaude)\ **Post date:** [August 13, 2019, 10:55pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561/1 "2019-08-13T22:55:03Z")
Server Version#:1.15.8.1198-eadbcbb45 Player Version#:irrelevant See [here](https://i.imgur.com/RxjGm0g.png). I have disabled GDM discovery under network and everything else under the DLNA options. But according to strace (and tcpdump) plex is still sending SSDT requests, approximately every 10 seconds. I am operating this server on the web so multicast is absolute nonsense. i’m attempting to block it using iptables, but what is this? this behavior makes absolutely no sense. ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [August 13, 2019, 11:15pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561/2 "2019-08-13T23:15:27Z")
SSDP is how Plex finds DLNA players and its clients on the multicast group. ---
**Author:** ![mgaude](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@mgaude](https://forums.plex.tv/u/mgaude)\ **Post date:** [August 17, 2019, 12:29pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561/3 "2019-08-17T12:29:54Z")
that does not answer my question though, why is there no option to disable it? my clients are purely interacting with plex over its API, they are _never_ on the local network with the server, so there is never anything to discover. to clarify, my plex server is located in a data center (because upstream performance of typical home internet connections in my country is terrible) so this discovery mechanism is useless and i don’t understand why there’s no config flag for disabling it. ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [August 17, 2019, 4:55pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561/4 "2019-08-17T16:55:52Z")
Were you to disable SSDP, you would disable how Plex finds its clients on your LAN. With respect, If you are worried about 1 one-packet broadcast every 10 seconds, I would recommend not connecting other devices such as lighting. These will occupy your 2.4 Ghz radio band. ---
**Author:** ![mgaude](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@mgaude](https://forums.plex.tv/u/mgaude)\ **Post date:** [August 18, 2019, 9:49pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561/5 "2019-08-18T21:49:20Z")
My problem is not SSDT on my LAN. My problem is that Plex sends a SSDT broadcast on a network interface that is connected to a data center, which means that any switch/router that forwards the packet or flags it means trouble. This has nothing to do with a LAN in a home network. ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [August 18, 2019, 10:06pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561/6 "2019-08-18T22:06:46Z")
As I understand VLANs in a datacenter, a properly configured port for that host will not allow uncontrolled / unexpected broadcasts from that host to reach the core LAN. ---
**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\ **Post date:** [November 11, 2019, 10:55pm UTC](https://forums.plex.tv/t/cannot-disable-ssdt/445561/7 "2019-11-11T22:55:14Z")
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