# Wowza Streaming Engine

**URL:** https://community.wowza.com/c/wowza-streaming-engine/8.md?page=88

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**Page:** 89

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## [What is bitrate limits of WebRTC over UDP ?](https://community.wowza.com/t/what-is-bitrate-limits-of-webrtc-over-udp/51829)

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**Author:** [@Asit\_Srivastava1](https://community.wowza.com/u/Asit_Srivastava1)\
**Replies:** 9\
**Last updated:** [August 24, 2018, 3:10pm UTC](https://community.wowza.com/t/what-is-bitrate-limits-of-webrtc-over-udp/51829 "2018-08-24T15:10:49Z")

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I want to stream high quality video using webRTC and wowza engine . I checked the known limitation part of "https://www.wowza.com/docs/how-to-use-webrtc-with-wowza-streaming-engine#edgeplayback " article and found that b…

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## [Why do you not have customer support for secure streaming?](https://community.wowza.com/t/why-do-you-not-have-customer-support-for-secure-streaming/51849)

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**Author:** [@Marc\_Scovill](https://community.wowza.com/u/Marc_Scovill)\
**Replies:** 1\
**Last updated:** [August 23, 2018, 4:58pm UTC](https://community.wowza.com/t/why-do-you-not-have-customer-support-for-secure-streaming/51849 "2018-08-23T16:58:14Z")

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Why do you not have customer support for secure streaming? Every website needs to have secure streaming available in this day and age, if you do not include support for it, you are doing your customers a huge dis-service…

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## [WebRTC input -\> Transcoder -\> HLS output = video freeze in iOS and Mac Safari](https://community.wowza.com/t/webrtc-input-transcoder-hls-output-video-freeze-in-ios-and-mac-safari/51833)

<div class="topic-metadata">

**Author:** [@Joshua\_Rubingh1](https://community.wowza.com/u/Joshua_Rubingh1)\
**Replies:** 2\
**Last updated:** [August 22, 2018, 12:32pm UTC](https://community.wowza.com/t/webrtc-input-transcoder-hls-output-video-freeze-in-ios-and-mac-safari/51833 "2018-08-22T12:32:58Z")

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We have setup WebRTC according to: https://www.wowza.com/docs/how-to-use-webrtc-with-wowza-streaming-engine and that is working fine. We are testing with the Wowza test publish page: https://www.wowza.com/\_private/webr…

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## [error ingesting HLS stream as stream file TagModelStart.isValid() failure](https://community.wowza.com/t/error-ingesting-hls-stream-as-stream-file-tagmodelstart-isvalid-failure/51830)

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**Author:** [@John\_Nogrady](https://community.wowza.com/u/John_Nogrady)\
**Replies:** 0\
**Last updated:** [August 21, 2018, 8:02pm UTC](https://community.wowza.com/t/error-ingesting-hls-stream-as-stream-file-tagmodelstart-isvalid-failure/51830 "2018-08-21T20:02:31Z")

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I am trying to ingest an HLS stream. I set up a stream file and connect that stream file however, the logs show error: 2018-08-21 06:51:04 comment server empty TagModelStart.isValid(): Invalid: EXT-X-START tag found i…

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## [Is there any reason for 2 of my 8 Wowza Media Servers don't show the CPU graph usage?](https://community.wowza.com/t/is-there-any-reason-for-2-of-my-8-wowza-media-servers-dont-show-the-cpu-graph-usage/51839)

<div class="topic-metadata">

**Author:** [@Paulo\_Paulino](https://community.wowza.com/u/Paulo_Paulino)\
**Replies:** 1\
**Last updated:** [August 21, 2018, 3:50pm UTC](https://community.wowza.com/t/is-there-any-reason-for-2-of-my-8-wowza-media-servers-dont-show-the-cpu-graph-usage/51839 "2018-08-21T15:50:30Z")

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All the usage (memory, connections, disk, network) graphs are showing but not the CPU graph and usage - “Home” and “Server Monitoring” options. Those 2 systems have equal configuration to the other 6 and the systems (har…

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## [Как избавиться от мерцания при использовании NVENC?](https://community.wowza.com/t/nvenc/51823)

<div class="topic-metadata">

**Author:** [@Dmitry\_Lopatnikov](https://community.wowza.com/u/Dmitry_Lopatnikov)\
**Replies:** 1\
**Last updated:** [August 20, 2018, 5:55pm UTC](https://community.wowza.com/t/nvenc/51823 "2018-08-20T17:55:02Z")

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Hi. I use wowza with transcoder on NVENC. Ubuntu operating system 16.4. NVIDIA Quadro K5200 video card. Driver version 390.77. The problem is that in a static picture, such as a presentation, the picture starts to flicke…

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## [Webrtc mobile streamming](https://community.wowza.com/t/webrtc-mobile-streamming/51822)

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**Author:** [@james\_choi](https://community.wowza.com/u/james_choi)\
**Replies:** 1\
**Last updated:** [August 20, 2018, 3:50pm UTC](https://community.wowza.com/t/webrtc-mobile-streamming/51822 "2018-08-20T15:50:46Z")

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By configuring Web RTC, images are displayed on Samsung Galaxy phone or Huawei. However, I can not see the video on the Sony phone or iPhone. Are you still unsupported?

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## [Cannot stream mp3 files over https](https://community.wowza.com/t/cannot-stream-mp3-files-over-https/51816)

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**Author:** [@Thaddeus\_Valk](https://community.wowza.com/u/Thaddeus_Valk)\
**Replies:** 2\
**Last updated:** [August 18, 2018, 8:01pm UTC](https://community.wowza.com/t/cannot-stream-mp3-files-over-https/51816 "2018-08-18T20:01:56Z")

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Hi, I am trying to stream my videos and audio using Wowza Streaming Engine v4.7.4 on Windows 2012 Server. My mp4 video files stream properly; however, I’m having issues trying to stream mp3 files directly. Is there a pr…

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## [How to activate the recording at startup](https://community.wowza.com/t/how-to-activate-the-recording-at-startup/51819)

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**Author:** [@Denilson\_Rocha](https://community.wowza.com/u/Denilson_Rocha)\
**Replies:** 2\
**Last updated:** [August 17, 2018, 4:11pm UTC](https://community.wowza.com/t/how-to-activate-the-recording-at-startup/51819 "2018-08-17T16:11:38Z")

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Hi everyone! I have configured some stream files in Live Applications using the Web Manager, and everything is OK. I am able to record the streams, clicking in the “Record this stream” in the Incoming Streams tab of eve…

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## [I'm trying to call Android from wowza.   How do I get source? I'm using mediaelement player](https://community.wowza.com/t/im-trying-to-call-android-from-wowza-how-do-i-get-source-im-using-mediaelement-player/51821)

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**Author:** [@cho\_hyunsu](https://community.wowza.com/u/cho_hyunsu)\
**Replies:** 0\
**Last updated:** [August 17, 2018, 9:15am UTC](https://community.wowza.com/t/im-trying-to-call-android-from-wowza-how-do-i-get-source-im-using-mediaelement-player/51821 "2018-08-17T09:15:24Z")

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I’m trying to call Android from wowza. How do I get source? I used it like this() before. This is my test page http://krta.or.kr/mediaelement/ PC : ok iphone : ok android : not ok Could you give me some advice? B…

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## [How to implement an RTSP Push for my source stream to push to Wowza Cloud?](https://community.wowza.com/t/how-to-implement-an-rtsp-push-for-my-source-stream-to-push-to-wowza-cloud/49612)

<div class="topic-metadata">

**Author:** [@Randall\_Eike](https://community.wowza.com/u/Randall_Eike)\
**Replies:** 7\
**Last updated:** [August 16, 2018, 6:58am UTC](https://community.wowza.com/t/how-to-implement-an-rtsp-push-for-my-source-stream-to-push-to-wowza-cloud/49612 "2018-08-16T06:58:11Z")

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I have written software that captures RTP packets from my an external camera and is able to forward them on. I created a SDP file and loaded it into VLC and then streamed the RTP packets to VLC and confirmed it plays cor…

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## [WEBRTC to Cloud cdn On Problem](https://community.wowza.com/t/webrtc-to-cloud-cdn-on-problem/51803)

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**Author:** [@james\_choi](https://community.wowza.com/u/james_choi)\
**Replies:** 1\
**Last updated:** [August 15, 2018, 10:01pm UTC](https://community.wowza.com/t/webrtc-to-cloud-cdn-on-problem/51803 "2018-08-15T22:01:42Z")

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Server (certificate) - Cloud flare (CDN applied Off) -\> Video transmission confirmation. Server (certificate) - Cloud flare (CDN On) -\> Page inaccessible. After receiving the cloud flare certificate, change it to jks and…

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## [Why do we get charged for localhost?](https://community.wowza.com/t/why-do-we-get-charged-for-localhost/51802)

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**Author:** [@Blake\_Whittle](https://community.wowza.com/u/Blake_Whittle)\
**Replies:** 1\
**Last updated:** [August 15, 2018, 9:53pm UTC](https://community.wowza.com/t/why-do-we-get-charged-for-localhost/51802 "2018-08-15T21:53:32Z")

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Why do we get charged for localhost instances of Wowza? I received an unexpected bill for 2 more instances and they were both localhost instances. Not very happy with Wowza at all.

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## [How to disable login from outside my network?](https://community.wowza.com/t/how-to-disable-login-from-outside-my-network/51789)

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**Author:** [@Paulo\_Fernandes](https://community.wowza.com/u/Paulo_Fernandes)\
**Replies:** 1\
**Last updated:** [August 13, 2018, 7:03pm UTC](https://community.wowza.com/t/how-to-disable-login-from-outside-my-network/51789 "2018-08-13T19:03:12Z")

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People are able to access my streaming engine by just using the rtmp adress I give them. If they go to “myipadress:8088/enginemanager/” they’ll reach the login page. Is there a way to only allow acess from the local ne…

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## [In Wowza How to change the time zone](https://community.wowza.com/t/in-wowza-how-to-change-the-time-zone/51783)

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**Author:** [@Elwood\_Hernandez](https://community.wowza.com/u/Elwood_Hernandez)\
**Replies:** 1\
**Last updated:** [August 13, 2018, 6:08pm UTC](https://community.wowza.com/t/in-wowza-how-to-change-the-time-zone/51783 "2018-08-13T18:08:42Z")

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## [How to control access to my multiple stream with a single image tag,control access to my multiple stream with a single image tag](https://community.wowza.com/t/how-to-control-access-to-my-multiple-stream-with-a-single-image-tag-control-access-to-my-multiple-stream-with-a-single-image-tag/51792)

<div class="topic-metadata">

**Author:** [@gyotaek\_lee](https://community.wowza.com/u/gyotaek_lee)\
**Replies:** 0\
**Last updated:** [August 13, 2018, 3:25pm UTC](https://community.wowza.com/t/how-to-control-access-to-my-multiple-stream-with-a-single-image-tag-control-access-to-my-multiple-stream-with-a-single-image-tag/51792 "2018-08-13T15:25:28Z")

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I have RefererValidate module (the related link is https://www.wowza.com/docs/how-to-control-access-to-your-application-by-checking-referer-domain-modulereferervalidate) set up in my application to control access to my a…

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## [Live streaming from Linux over UDP protocol](https://community.wowza.com/t/live-streaming-from-linux-over-udp-protocol/51796)

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**Author:** [@harshal\_patel](https://community.wowza.com/u/harshal_patel)\
**Replies:** 0\
**Last updated:** [August 13, 2018, 3:25pm UTC](https://community.wowza.com/t/live-streaming-from-linux-over-udp-protocol/51796 "2018-08-13T15:25:11Z")

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I have an embedded device running with Linux. I want to stream my camera content to Wowza cloud and at the same time, I want to display content to local display. I am using gstremer to achieve the same. I am able to st…

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## [What is the limit of recording streams simultaneously](https://community.wowza.com/t/what-is-the-limit-of-recording-streams-simultaneously/51794)

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**Author:** [@cheinan\_polak](https://community.wowza.com/u/cheinan_polak)\
**Replies:** 1\
**Last updated:** [August 13, 2018, 9:31am UTC](https://community.wowza.com/t/what-is-the-limit-of-recording-streams-simultaneously/51794 "2018-08-13T09:31:32Z")

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Hello Is there a limit for recording incoming streams simultaneously? Thanks Cheinan

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## [Wowza AWS + Goofy instead of vods3 + cloudfront](https://community.wowza.com/t/wowza-aws-goofy-instead-of-vods3-cloudfront/51790)

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**Author:** [@Kostas\_Koutos](https://community.wowza.com/u/Kostas_Koutos)\
**Replies:** 0\
**Last updated:** [August 10, 2018, 10:21pm UTC](https://community.wowza.com/t/wowza-aws-goofy-instead-of-vods3-cloudfront/51790 "2018-08-10T22:21:19Z")

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Hello, The last days i am configuring wowza in AWS and tried to connect it with S3. It didn’t work for me and i was getting 404 error for the playlist.m3u8. So i was thinking that should be another way to connect the AW…

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## [Can Wowza inject SCTE-35 ad marker?](https://community.wowza.com/t/can-wowza-inject-scte-35-ad-marker/51788)

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**Author:** [@Jason\_Byrne](https://community.wowza.com/u/Jason_Byrne)\
**Replies:** 0\
**Last updated:** [August 10, 2018, 2:44pm UTC](https://community.wowza.com/t/can-wowza-inject-scte-35-ad-marker/51788 "2018-08-10T14:44:37Z")

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We are utilizing the ID3 tag injection right now, but this is not ideal. We really want to inject a SCTE-35 marker into the manifest to support SSAI. How can we accomplish this?

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## [Does Google Widevine license server create keys for encryption using key rotation?](https://community.wowza.com/t/does-google-widevine-license-server-create-keys-for-encryption-using-key-rotation/51786)

<div class="topic-metadata">

**Author:** [@John\_Smith13](https://community.wowza.com/u/John_Smith13)\
**Replies:** 0\
**Last updated:** [August 10, 2018, 1:57pm UTC](https://community.wowza.com/t/does-google-widevine-license-server-create-keys-for-encryption-using-key-rotation/51786 "2018-08-10T13:57:03Z")

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I intend to serve my content using Google Widevine, and use the key rotation feature. Does Google Widevine License server also generate keys? I understand that the license server/ key management server from Google Widev…

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## [Set WebRTC latency](https://community.wowza.com/t/set-webrtc-latency/51782)

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**Author:** [@Mihai\_Postelnicu](https://community.wowza.com/u/Mihai_Postelnicu)\
**Replies:** 0\
**Last updated:** [August 10, 2018, 6:49am UTC](https://community.wowza.com/t/set-webrtc-latency/51782 "2018-08-10T06:49:52Z")

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Is there a parameter on stream or on application for latency. I’m trying to have a more fluent playback and overcome various network conditions. A cost of 1 second, maybe 2 in some cases would be fine.

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## [Wowza Stream lock Temp dh key length is 768 bit](https://community.wowza.com/t/wowza-stream-lock-temp-dh-key-length-is-768-bit/51781)

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**Author:** [@Stiven\_Andre](https://community.wowza.com/u/Stiven_Andre)\
**Replies:** 0\
**Last updated:** [August 10, 2018, 4:44am UTC](https://community.wowza.com/t/wowza-stream-lock-temp-dh-key-length-is-768-bit/51781 "2018-08-10T04:44:18Z")

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Hello. I have noticed that a server is using a 768 bit temp DH key. From openssl s\_client -connect host:port -showcerts: “Server Temp Key: DH, 768 bits” 768 bit DH doesn’t work on androids 5,6,7. How do I change that…

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## [Problem viewing RTSP stream of MPEG-TS input](https://community.wowza.com/t/problem-viewing-rtsp-stream-of-mpeg-ts-input/51779)

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**Author:** [@Sean\_Dunn](https://community.wowza.com/u/Sean_Dunn)\
**Replies:** 0\
**Last updated:** [August 10, 2018, 4:44am UTC](https://community.wowza.com/t/problem-viewing-rtsp-stream-of-mpeg-ts-input/51779 "2018-08-10T04:44:16Z")

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My test application in the Wowza Streaming Engine has RTSP/RTP and MPEG-DASH enabled for Platback Types. I can view the MPEG-DASH stream in both the Test Player and VLC. When I attempt to use VLC to play the rtsp:// str…

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## [API to create MPEG-TS stream (audio, KLV metadata), and broadcast via UDP from cloud service?](https://community.wowza.com/t/api-to-create-mpeg-ts-stream-audio-klv-metadata-and-broadcast-via-udp-from-cloud-service/51775)

<div class="topic-metadata">

**Author:** [@Sean\_Dunn](https://community.wowza.com/u/Sean_Dunn)\
**Replies:** 0\
**Last updated:** [August 9, 2018, 6:53pm UTC](https://community.wowza.com/t/api-to-create-mpeg-ts-stream-audio-klv-metadata-and-broadcast-via-udp-from-cloud-service/51775 "2018-08-09T18:53:52Z")

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I’d like to use the Wowza cloud service to allow a streamer to connect from a custom client, send a MPEG-TS stream containing an Opus audio stream and a KLV metadata stream, and have receiving clients receive this via UD…

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## [onvif VOD request](https://community.wowza.com/t/onvif-vod-request/51770)

<div class="topic-metadata">

**Author:** [@video\_test](https://community.wowza.com/u/video_test)\
**Replies:** 0\
**Last updated:** [August 8, 2018, 1:43pm UTC](https://community.wowza.com/t/onvif-vod-request/51770 "2018-08-08T13:43:56Z")

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Hello, I’m using the Milestone Xprotect VMS in my organization, one of its features is the ONVIF Bridge that can give me the option to connect to the cameras live or VOD streams using the RTSP protocol. this is an exam…

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## [WebRTC Transcoded streams freeze](https://community.wowza.com/t/webrtc-transcoded-streams-freeze/51766)

<div class="topic-metadata">

**Author:** [@Mihai\_Postelnicu](https://community.wowza.com/u/Mihai_Postelnicu)\
**Replies:** 0\
**Last updated:** [August 8, 2018, 11:03am UTC](https://community.wowza.com/t/webrtc-transcoded-streams-freeze/51766 "2018-08-08T11:03:51Z")

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Hi, I’m trying to transcode webrtc streams for better performance in a multiple connections on page scenario. When I use the direct stream it works fine but on the transcoded ones I get a lot of freezing to the point wh…

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## [Playback Security Client Restrictions](https://community.wowza.com/t/playback-security-client-restrictions/51765)

<div class="topic-metadata">

**Author:** [@FLUZO\_Root](https://community.wowza.com/u/FLUZO_Root)\
**Replies:** 0\
**Last updated:** [August 8, 2018, 8:07am UTC](https://community.wowza.com/t/playback-security-client-restrictions/51765 "2018-08-08T08:07:51Z")

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Hi, I’m ussing Wowza Streaming Engine Pro 4 for Amazon EC2 4.6.0 build19395. I have an Application with four Incoming Streams. Publising is protected by password. I can playback all streams with VLC without problem fr…

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## [Wowza load balancer for VoD and Live](https://community.wowza.com/t/wowza-load-balancer-for-vod-and-live/51764)

<div class="topic-metadata">

**Author:** [@Kostas\_Koutos](https://community.wowza.com/u/Kostas_Koutos)\
**Replies:** 0\
**Last updated:** [August 7, 2018, 11:07pm UTC](https://community.wowza.com/t/wowza-load-balancer-for-vod-and-live/51764 "2018-08-07T23:07:00Z")

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Hello, I have a question regarding the Wowza Load Balancer. Can i use 1 Load Balancer for VoD Edge and Live Edge clusters? My setup is like this: 1 x VoD Edge (Media Cache connected to NFS) and 1 x Live Edge (connect…

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## [ModuleStreamResolver HLS 404's unless RTMP client is connected](https://community.wowza.com/t/modulestreamresolver-hls-404s-unless-rtmp-client-is-connected/51756)

<div class="topic-metadata">

**Author:** [@Bryan\_Hughes](https://community.wowza.com/u/Bryan_Hughes)\
**Replies:** 0\
**Last updated:** [August 7, 2018, 2:04am UTC](https://community.wowza.com/t/modulestreamresolver-hls-404s-unless-rtmp-client-is-connected/51756 "2018-08-07T02:04:16Z")

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I’m trying to set my edge servers to use the ModuleStreamResolver for service HLS streams but requests for HLS streams will 404 unless there’s an RTMP stream already pulling from the origin. Also once I get an HLS strea…

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