# MPEG-TS quality of Stream Target is bad **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [August 14, 2017, 10:38am UTC](https://community.wowza.com/t/mpeg-ts-quality-of-stream-target-is-bad/49427 "2017-08-14T10:38:31Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Tomokazu\_Yoshimura](https://avatars.discourse-cdn.com/v4/letter/t/48db29/32.png) [@Tomokazu\_Yoshimura](https://community.wowza.com/u/Tomokazu_Yoshimura)\ **Post date:** [August 14, 2017, 10:38am UTC](https://community.wowza.com/t/mpeg-ts-quality-of-stream-target-is-bad/49427/1 "2017-08-14T10:38:31Z")
It was confirmed that the data of Pattern A was transmitted twice. PatternB is normal. Restored by restarting Stream Target. Is this a bug? Wowza Streaming Engine 4.5.0.01 build18956 ---
**Author:** ![Alex\_C](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@Alex\_C](https://community.wowza.com/u/Alex_C)\ **Post date:** [August 20, 2017, 1:33am UTC](https://community.wowza.com/t/mpeg-ts-quality-of-stream-target-is-bad/49427/2 "2017-08-20T01:33:36Z")
Hello @Tomokazu Yoshimura, Could you further explain what you mean by the Pattern A/B? Seems like you have only one source stream so there should be only one pattern (if pattern means stream) I would first suggest you [upgrade](https://www.wowza.com/docs/how-to-update-your-wowza-streaming-engine-installation)to Wowza Engine 4.7.1, in addition to fixes, new features there are security benefits that come with that version. I would also suggest verifying that the Stream Target is configured correctly per [this article](https://www.wowza.com/docs/how-to-use-mpeg-ts-to-distribute-live-streams). Regards, Alex C. ---
**Author:** ![Tomokazu\_Yoshimura](https://avatars.discourse-cdn.com/v4/letter/t/48db29/32.png) [@Tomokazu\_Yoshimura](https://community.wowza.com/u/Tomokazu_Yoshimura)\ **Post date:** [August 21, 2017, 11:13am UTC](https://community.wowza.com/t/mpeg-ts-quality-of-stream-target-is-bad/49427/3 "2017-08-21T11:13:26Z")
Hello @Alex C Thank you for answering. Pattern means delivery method. Pattern A is UDP delivered from Live Origin. Pattern B is HLS delivered from the Live Edge via the wowz protocol from the Live Origin. The setting of StreamTarget has been set while referring to the article. I will ask about the cause of the problem that double delivery will be done when it is Pattern A. Is Wowza Streaming Engine 4.7.1 the resolved version? Please let me know if you know. Regards, Tomokazu Yoshimura. ---
**Author:** ![CHAICHIT\_KUNAJINDA](https://avatars.discourse-cdn.com/v4/letter/c/c57346/32.png) [@CHAICHIT\_KUNAJINDA](https://community.wowza.com/u/CHAICHIT_KUNAJINDA)\ **Post date:** [August 21, 2017, 5:52pm UTC](https://community.wowza.com/t/mpeg-ts-quality-of-stream-target-is-bad/49427/4 "2017-08-21T17:52:36Z")
Hello Tomokazu, \*\*Q.\*\*the cause of the problem that double delivery will be done when it is Pattern A. **#1** If you send MPEG2-TS (UDP Stream), please check Configuration on Network device. You will need to enable igmp snooping on on all network devices. [IPv4 Multicast IGMP Snooping](https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SY/configuration/guide/sy_swcg/ipv4_igmp_snooping.html) **#2** Example Wowza Stream Target Configuration Regards, Chaichit Kunajinda Email: [chaichitk@i-iptv.com](mailto:chaichitk@i-iptv.com) ---
**Author:** ![Tomokazu\_Yoshimura](https://avatars.discourse-cdn.com/v4/letter/t/48db29/32.png) [@Tomokazu\_Yoshimura](https://community.wowza.com/u/Tomokazu_Yoshimura)\ **Post date:** [August 23, 2017, 4:03am UTC](https://community.wowza.com/t/mpeg-ts-quality-of-stream-target-is-bad/49427/5 "2017-08-23T04:03:11Z")
Hello @CHAICHIT KUNAJINDA The setting of Stream Target is unicast. It is set as follows - Source Stream Name: - example\_001/1.stream - Destination Stream Name: - example\_001\_1 - Destination Host: - 192.168.10.1 - Destination Port: - 30000 - Time To Live: - 63 - RTP Wrap: - [Wrap MPEG-TS stream in RTP] is not done. Regards, Tomokazu Yoshimura.