# Problems with streaming.

**URL:** <https://community.wowza.com/t/problems-with-streaming/44222>\
**Category:** Wowza Streaming Engine\
**Created:** [November 19, 2014, 4:18pm UTC](https://community.wowza.com/t/problems-with-streaming/44222 "2014-11-19T16:18:54Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![xxx\_xxx](https://avatars.discourse-cdn.com/v4/letter/x/3be4f8/32.png) [@xxx\_xxx](https://community.wowza.com/u/xxx_xxx)\
**Post date:** [November 19, 2014, 4:18pm UTC](https://community.wowza.com/t/problems-with-streaming/44222/1 "2014-11-19T16:18:54Z")

</div>

Hello.

We have problems with streaming this camera:

If you look at this rtsp stream in VLC, everything is ok, but when streaming it through wowza, there are problems: if look at rtmp stream from wowza in firefox in jwplayer, we see only first frame, if the same in chrome - very rare changed frames. What is the problem?

P.S. To be precise, we had another bug earlier - “stream not healthy” in wowza log, reconnect every 20 seconds, but setting ttl of packets bigger in our router fixed it. VLC always showed everything ok - and then, and now.

---

<div class="post-metadata">

**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\
**Post date:** [November 19, 2014, 7:41am UTC](https://community.wowza.com/t/problems-with-streaming/44222/2 "2014-11-19T07:41:43Z")

</div>

Hello there and welcome to the Wowza support forum.

Have you worked through this guide and followed the troubleshooting steps?

[How to re-stream video from an IP camera (RTSP/RTP re-streaming)](https://www.wowza.com/docs/how-to-re-stream-video-from-an-ip-camera-rtsp-rtp-re-streaming%28RTSP-RTP-re-streaming%29)

Kind regards,

Salvadore

---

<div class="post-metadata">

**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\
**Post date:** [November 19, 2014, 11:55am UTC](https://community.wowza.com/t/problems-with-streaming/44222/3 "2014-11-19T11:55:20Z")

</div>

I see what you mean, the stream seems frozen. Every now and then it seems to update.

I did see a couple Warn messages in the logs:

```auto
WARN server comment - RTCPHandler.isTimeSyncReady: Hit MaxRTCPWaitTime synchronizing on system clock.
WARN server comment - Waiting for RTCP packet. See docs for (Application.xml: RTP/AVSyncMethod and RTP/MaxRTCPWaitTime).

```

Changing **RTP/AVSyncMethod** to: **systemclock** in **[install-dir]/conf/[application-name]/Application.xml** fixed these 2.

And adding this property to **MediaCaster/Properties** container in **[install-dir]/conf/[application-name]/Application.xml** seemed to fix this error:

```auto
<Property>
    <Name>rtspFilterUnknownTracks</Name>
    <Value>true</Value>
    <Type>Boolean</Type>
</Property>

```

```auto
WARN server comment - Failed to find an appropriate depacketizer for this track (vnd.onvif.metadata)

```

You may want to try a lower bitrate and check the fps/keyframe interval. 30 fps with a 2 second keyframe interval may fix the “frozen” stream issue, but not sure.

Kind regards,

Salvadore

---

<div class="post-metadata">

**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\
**Post date:** [November 20, 2014, 5:26am UTC](https://community.wowza.com/t/problems-with-streaming/44222/4 "2014-11-20T05:26:42Z")

</div>

That’s great! Thanks for the update, and I am glad I could help.

Let us know if there is anything else we can assist you with.

Kind regards,

Salvadore

---

<div class="post-metadata">

**Author:** ![xxx\_xxx](https://avatars.discourse-cdn.com/v4/letter/x/3be4f8/32.png) [@xxx\_xxx](https://community.wowza.com/u/xxx_xxx)\
**Post date:** [November 19, 2014, 7:51pm UTC](https://community.wowza.com/t/problems-with-streaming/44222/5 "2014-11-19T19:51:08Z")

</div>

Yes. Nothing helped. Mayby I missed something? Similar bug, described there, is about “nalUnitFilter”, but setting it as described there doesn’t help.

Can you try this rtsp on your wowza? Will this bug be reproduced? Camera is working now.

---

<div class="post-metadata">

**Author:** ![xxx\_xxx](https://avatars.discourse-cdn.com/v4/letter/x/3be4f8/32.png) [@xxx\_xxx](https://community.wowza.com/u/xxx_xxx)\
**Post date:** [November 20, 2014, 1:30pm UTC](https://community.wowza.com/t/problems-with-streaming/44222/6 "2014-11-20T13:30:41Z")

</div>

Thank you, setting AVSyncMethod to systemclock helped!

---

<div class="post-metadata">

**Author:** ![Osvaldo\_Lucho](https://avatars.discourse-cdn.com/v4/letter/o/cab0a1/32.png) [@Osvaldo\_Lucho](https://community.wowza.com/u/Osvaldo_Lucho)\
**Post date:** [June 6, 2018, 2:24pm UTC](https://community.wowza.com/t/problems-with-streaming/44222/7 "2018-06-06T14:24:10Z")

</div>

@ 2018…

Works great with an older IP cam.

Thanks for all,

Eduardo Folly