# UDP multicast issues

**URL:** <https://community.wowza.com/t/udp-multicast-issues/46231>\
**Category:** Wowza Streaming Engine\
**Created:** [November 27, 2015, 9:33am UTC](https://community.wowza.com/t/udp-multicast-issues/46231 "2015-11-27T09:33:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Leonardo\_Pagotto](https://avatars.discourse-cdn.com/v4/letter/l/5daacb/32.png) [@Leonardo\_Pagotto](https://community.wowza.com/u/Leonardo_Pagotto)\
**Post date:** [November 27, 2015, 9:33am UTC](https://community.wowza.com/t/udp-multicast-issues/46231/1 "2015-11-27T09:33:57Z")

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Hello!

I have to stream 20 live TV channels to Android and other mobile devices, all UDP multicast… Server is set and I am able to play all streams on VLC and TS Reader Pro.

Every channels has a unique UDP multicast (i.e. udp://@227.0.0.100:10000).

Wowza Streaming Engine shows my streams as been Active but there’s no any incoming data (please, se prin screen). Am I missing anything?

![](http://1drv.ms/1ll9ynP)

Many thanks for any help

Leo

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**Author:** ![Andrew\_Ramberg](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)\
**Post date:** [November 30, 2015, 10:50pm UTC](https://community.wowza.com/t/udp-multicast-issues/46231/2 "2015-11-30T22:50:36Z")

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Hello,

If you have multiple network interfaces you may want to specify which interface is to be used for multicast ingest. Please reference the following article for more information:

[How to listen for a multicast stream on a particular network interface](https://www.wowza.com/docs/how-to-listen-for-a-multicast-stream-on-a-particular-network-interface)

Best regards,

Andrew