# RTSP over HTTP, killUnidentifiedSessions

**URL:** <https://community.wowza.com/t/rtsp-over-http-killunidentifiedsessions/94821>\
**Category:** Wowza Streaming Engine\
**Created:** [April 12, 2022, 8:18pm UTC](https://community.wowza.com/t/rtsp-over-http-killunidentifiedsessions/94821 "2022-04-12T20:18:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![L\_Eric](https://avatars.discourse-cdn.com/v4/letter/l/ce7236/32.png) [@L\_Eric](https://community.wowza.com/u/L_Eric)\
**Post date:** [April 12, 2022, 8:18pm UTC](https://community.wowza.com/t/rtsp-over-http-killunidentifiedsessions/94821/1 "2022-04-12T20:18:43Z")

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Hi,

I’m using a Client (player) that consume the Wowza server video streams via RTSP over HTTP protocol.

The 2 required channels for RTSP over HTTP are properly opened with a POST(Client -\> Server) and a GET (Server -\> Client) methods.

So far, so good… everything works fine. The Video Stream (data) is sent through the Server-\>Client channel.

Problem occurs after a couple of seconds (around 5 sec), the wowza server kills the Client -\> Server connection (killUnidentifiedSessions: Killing unidentified session).

Here’s what I tried so far to keep-alive the client-\>Server connection:

- I adjust the values of the VHost.xml _unidentifiedSessionTimeout_ to higher values, but it only delays the killing of the Client-\>Server channel.
- I sent a RTSP OPTIONS (every 10 sec.) on the Client -\> Server channel to keep alive the connection, but server still kills the connection.
- I sent RTCP Receiver report (every 5 sec.) on Server-\>client channel, but server still kills the connection.

The only workaround that I found was to set the VHost \> _unidentifiedSessionTimeout_ to 0, so Wowza never kills the connection.

Is there any configuration or keep-alive mechanism to prevent Wowza server to kills the client -\> server connection?

Thanks,

Eric

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**Author:** ![Jaimee\_Blackwood](https://avatars.discourse-cdn.com/v4/letter/j/9f8e36/32.png) [@Jaimee\_Blackwood](https://community.wowza.com/u/Jaimee_Blackwood)\
**Post date:** [June 13, 2022, 8:51pm UTC](https://community.wowza.com/t/rtsp-over-http-killunidentifiedsessions/94821/2 "2022-06-13T20:51:51Z")

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Hi Eric, did you make any progress with this? In my set up I’m also seeing killUnidentifiedSessions logged and struggling to get to the bottom of it.

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**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [June 13, 2022, 10:06pm UTC](https://community.wowza.com/t/rtsp-over-http-killunidentifiedsessions/94821/3 "2022-06-13T22:06:14Z")

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**UnidentifiedSessionTimeout** - Time, in milliseconds, that the server will wait for an unidentified client session before disconnecting the application. You do need to set this to 0.

[https://www.wowza.com/docs/wowza-streaming-engine-vhostxml-configuration-reference#application](https://www.wowza.com/docs/wowza-streaming-engine-vhostxml-configuration-reference#application)

I would send a ticket so we can see if there is an issue with a firewall or port forwarding that’s slowing the connection time down.