# \#EXT-X-PRELOAD-HINT tag does not appeared in m3u8 playlist

**URL:** <https://community.wowza.com/t/ext-x-preload-hint-tag-does-not-appeared-in-m3u8-playlist/93285>\
**Category:** Wowza Streaming Engine\
**Tags:** low-latency\
**Created:** [May 11, 2021, 3:40am UTC](https://community.wowza.com/t/ext-x-preload-hint-tag-does-not-appeared-in-m3u8-playlist/93285 "2021-05-11T03:40:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![danny](https://avatars.discourse-cdn.com/v4/letter/d/848f3c/32.png) [@danny](https://community.wowza.com/u/danny)\
**Post date:** [May 11, 2021, 3:40am UTC](https://community.wowza.com/t/ext-x-preload-hint-tag-does-not-appeared-in-m3u8-playlist/93285/1 "2021-05-11T03:40:53Z")

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Hi team,

I’ve setup LL-HLS Live stream referring following article.  
[https://www.wowza.com/docs/deliver-apple-low-latency-hls-live-streams-using-wowza-streaming-engine](https://www.wowza.com/docs/deliver-apple-low-latency-hls-live-streams-using-wowza-streaming-engine)

But I cannot find the #EXT-X-PRELOAD-HINT tag in the m3u8 playlist.  
I’ve checked either playlist.m3u8 and playlist\_sfm4s.m3u8 and also set the properties for LL-HLS but I couldn’t.

Are there any additional settings for using Preload Hint feature?

Thanks in advance.

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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:** [May 12, 2021, 2:19pm UTC](https://community.wowza.com/t/ext-x-preload-hint-tag-does-not-appeared-in-m3u8-playlist/93285/2 "2021-05-12T14:19:10Z")

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Hi @danny which version of Streaming Engine are you on? This feature was added in Engine 4.8.5.

The #EXT-X-PRELOAD-HINT tag definitely shows up in the chunklist logs and I just confirmed it does in some tests. All I can think of is that you may not have LL-HLS enabled properly, the chunks/fragments aren’t generating correctly or you’re not using an iOS device that supports the LL-HLS spec.

These are just guesses though so in order for us to truly diagnose, we’ll need a support ticket. We’ll take a closer look and find the issue with you. Thanks.

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**Author:** ![danny](https://avatars.discourse-cdn.com/v4/letter/d/848f3c/32.png) [@danny](https://community.wowza.com/u/danny)\
**Post date:** [May 13, 2021, 2:49am UTC](https://community.wowza.com/t/ext-x-preload-hint-tag-does-not-appeared-in-m3u8-playlist/93285/3 "2021-05-13T02:49:59Z")

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Hi Rose,

Thank you for your quick reply.

I use Wowza Streaming Engine ver.4.8.10.

> you’re not using an iOS device that supports the LL-HLS spec

I tested the LL-HLS stream using THEOPlayer on this site and Mac Chrome.

> **[Test your stream: Latency Protocols LL-HLS LL-DASH HLS DASH HESP](https://www.theoplayer.com/test-your-stream-hls-dash-hesp)**
>
> See how your stream performs on THEOplayer- the leading video player in low latency capabilities supporting MPEG-DASH, HLS, LL-HLS, DASH, LL-DASH & HESP.

> you may not have LL-HLS enabled properly, the chunks/fragments aren’t generating correctly

To use the PRELOAD HINT feature, is it necessary to set the chunk size to a specific number of seconds or less?

Thanks