# Problem with play play MPEG-DASH example

**URL:** <https://community.wowza.com/t/problem-with-play-play-mpeg-dash-example/49169>\
**Category:** Wowza Streaming Engine\
**Created:** [July 12, 2017, 10:13am UTC](https://community.wowza.com/t/problem-with-play-play-mpeg-dash-example/49169 "2017-07-12T10:13:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Zohre\_Zaki](https://avatars.discourse-cdn.com/v4/letter/z/ecae2f/32.png) [@Zohre\_Zaki](https://community.wowza.com/u/Zohre_Zaki)\
**Post date:** [July 12, 2017, 10:13am UTC](https://community.wowza.com/t/problem-with-play-play-mpeg-dash-example/49169/1 "2017-07-12T10:13:29Z")

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Hi

my problem is with

[https://www.wowza.com/docs/how-to-playback-with-the-example-mpeg-dash-players-dash#](https://www.wowza.com/docs/how-to-playback-with-the-example-mpeg-dash-players-dash#)

however test player work correctly,cant play stream in player.html

and get this error:

Error undefined for undefined

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**Author:** ![Jermaine\_Hemby](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@Jermaine\_Hemby](https://community.wowza.com/u/Jermaine_Hemby)\
**Post date:** [July 16, 2017, 4:16pm UTC](https://community.wowza.com/t/problem-with-play-play-mpeg-dash-example/49169/2 "2017-07-16T16:16:49Z")

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Hello,

Thanks for contacting the Wowza Community

We need a little more details to troubleshoot your issue.

Can you confirm you have the proper ports opened on your firewall to allow traffic? You can find port information [HERE](https://www.wowza.com/docs/how-to-install-and-configure-wowza-streaming-engine)

Can you provide the following information and this will help me determine where the issue is? Can you also provide dates and times of when you experienced the issue so we can narrow that down in the logs?

- Your logs in a .zip file, located here: [install-dir]/logs
- Your conf folder in a .zip file, located here: [install-dir]/conf
- Helpful Article on creating a .zip file: [https://www.wowza.com/docs/how-to-create-a-compressed-zip-file-in-windows-os-x-and-linux](https://www.wowza.com/docs/how-to-create-a-compressed-zip-file-in-windows-os-x-and-linux)

You can open a ticket [HERE](https://www.wowza.com/support/open-ticket)and submit the info and we can assist further.

regards,

Jermaine