# HLS stream sudden skip

**URL:** <https://community.wowza.com/t/hls-stream-sudden-skip/34701>\
**Category:** Wowza Streaming Engine\
**Created:** [August 23, 2012, 6:38am UTC](https://community.wowza.com/t/hls-stream-sudden-skip/34701 "2012-08-23T06:38:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Shay\_Cohen](https://avatars.discourse-cdn.com/v4/letter/s/eb8c5e/32.png) [@Shay\_Cohen](https://community.wowza.com/u/Shay_Cohen)\
**Post date:** [August 23, 2012, 6:38am UTC](https://community.wowza.com/t/hls-stream-sudden-skip/34701/1 "2012-08-23T06:38:06Z")

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Hi, we see random sudden skips on our HLS, the skip is always forward , not to a particular point and at no particular time, mediastreamvalidator results are fine, i can’t find anything in the logs, any hint would be appreciated, the server CPU or I/O are not under any stress.

(WMS 3.1.2 patch 4, Latest MediaCache)

BR,

Shay

Update: we use BDNS i think the reason for the skip was that the player is not “sticky” so i used

cupertinoRelativePlaylistPlaylists

false

Boolean

together with:

cupertinoPlaylistHostDomain

test.com

to force the player to a single server once it made the initial request

I think that was the issue

BR,

Shay.

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [August 24, 2012, 10:32am UTC](https://community.wowza.com/t/hls-stream-sudden-skip/34701/2 "2012-08-24T10:32:04Z")

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You may have an odd key frame frequency which is not a factor of the default cupertinoChunkDurationTarget (which 10000 milliseconds or 10 seconds). Try changing the key frame frequency of the stream to 2 seconds. Or try changing cupertinoChunkDurationTarget to a multiple of key frame frequency. See this guide for more details:

[https://www.wowza.com/docs/how-to-configure-apple-hls-packetization-cupertinostreaming](https://www.wowza.com/docs/how-to-configure-apple-hls-packetization-cupertinostreaming)

Richard