# Issue with webrtc streaming in web sdk **URL:** \ **Category:** Web\ **Created:** [May 13, 2025, 2:31pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714 "2025-05-13T14:31:40Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![bharat.bhadresha](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bharat.bhadresha/32/45714_2.png) [@bharat.bhadresha](https://devforum.zoom.us/u/bharat.bhadresha)\ **Post date:** [May 13, 2025, 2:31pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/1 "2025-05-13T14:31:40Z")
**Description** When using `video_webrtc_mode:1`, web sdk throws a lot of console errors and then stops working. **Browser Console Error** ```auto [2048:2368:0512/085237.592107:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085238.092097:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085238.092470:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist. [2048:2368:0512/085238.592094:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085239.092084:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085239.116495:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist. [2048:2368:0512/085239.592111:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085240.092100:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085240.092500:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist. [2048:2368:0512/085240.592125:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085241.095206:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085241.095769:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist. [2048:2368:0512/085241.592078:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085242.092098:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085242.092513:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist. [2048:2368:0512/085242.592107:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085243.093030:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist. [2048:2368:0512/085243.093553:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist. ``` **Which Web Meeting SDK version?** Web sdk client view 3.13.1 Browser: Chrome OS: Ubuntu ---
**Author:** ![amanda-recallai](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/amanda-recallai/32/44747_2.png) [@amanda-recallai](https://devforum.zoom.us/u/amanda-recallai)\ **Post date:** [May 14, 2025, 10:37pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/2 "2025-05-14T22:37:18Z")
Hey @bharat.bhadresha, Thanks for sharing the logs. It looks like there’s an audio stream that’s missing here. Given that you aren’t receiving the stream, there’s a few ways to go about debugging this: - [Double-check you’re calling attachVideo after calling the startVideo callbacks](https://developers.zoom.us/docs/video-sdk/web/video/#start-video) as it is required to use the `video_webrtc_mode` [per the docs](https://developers.zoom.us/docs/video-sdk/auth/#payload) - Double-check you’re not accidentally subscribing to a non-existent track. Try setting the `video_webrtc_mode` to 0 to see if you can subscribe to anything (i.e. audio) - Downgrade to a previous version after 3.12.0 ([release notes](https://developers.zoom.us/changelog/meeting-sdk/web/3.12.0/#added)) to see if this is a bug in the current SDK Alternatively, you could use a third party like [Recall.ai](https://recall.ai) which makes it easy to get meeting data like video and audio ---
**Author:** ![bharat.bhadresha](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bharat.bhadresha/32/45714_2.png) [@bharat.bhadresha](https://devforum.zoom.us/u/bharat.bhadresha)\ **Post date:** [May 21, 2025, 5:08am UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/3 "2025-05-21T05:08:17Z")
@amanda-recallai Thank you for your response, the docs you linked are of video sdk but I am using meeting sdk, I doubt if I have to subscribe as meeting sdk should internally handle it. This issue is in this version only because previous version doesn’t have webrtc. ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [May 21, 2025, 12:59pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/4 "2025-05-21T12:59:46Z")
Hey @bharat.bhadresha Thanks for reaching out to us.. Allow me some time to test this on my end. Have you tried using our sample app to test this issue? ---
**Author:** ![bharat.bhadresha](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bharat.bhadresha/32/45714_2.png) [@bharat.bhadresha](https://devforum.zoom.us/u/bharat.bhadresha)\ **Post date:** [May 22, 2025, 7:07am UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/5 "2025-05-22T07:07:14Z")
@elisa.zoom Yes we have tested this on sample app also. The issue mostly surfaces for meeting duration of more than 30 minutes. ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [May 22, 2025, 3:26pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/6 "2025-05-22T15:26:55Z")
Hey @bharat.bhadresha So this issue only happens when you pass video\_webrtc\_mode:1 and only for meetings over 30 minutes? Is this happening when passing video\_webrtc\_mode:0 or when not passing it at all? ---
**Author:** ![bharat.bhadresha](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bharat.bhadresha/32/45714_2.png) [@bharat.bhadresha](https://devforum.zoom.us/u/bharat.bhadresha)\ **Post date:** [May 27, 2025, 5:02am UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/7 "2025-05-27T05:02:56Z")
This issue also happens if I pass `video_webrtc_mode:0` . I am not sure what conditions causes this but it happened to some of our test meetings. I can DM the meeting ids if needed for investigation. ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [May 28, 2025, 1:52pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/8 "2025-05-28T13:52:58Z")
Hi @bharat.bhadresha That would be great. I tried replicating this issue on my end using our [sample app](https://github.com/zoom/meetingsdk-web-sample) that’s using version 3.13.2 and I was not able to reproduce the issue Could you try using the 3.13.2 version and if this happens, please share the same browser errors, along with a meeting id ---
**Author:** ![bharat.bhadresha](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bharat.bhadresha/32/45714_2.png) [@bharat.bhadresha](https://devforum.zoom.us/u/bharat.bhadresha)\ **Post date:** [June 30, 2025, 6:57am UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/9 "2025-06-30T06:57:11Z")
I tried with latest SDK too and still got the same issue. I have the browser log and meeting id. Please start a DM thread so I can post the information there. ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [July 1, 2025, 1:35pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/10 "2025-07-01T13:35:35Z")
Let me send you a DM ---
**Author:** ![matiasgd23](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/matiasgd23/32/63242_2.png) [@matiasgd23](https://devforum.zoom.us/u/matiasgd23)\ **Post date:** [September 11, 2025, 3:47pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/11 "2025-09-11T15:47:16Z")
Any update from this? ---
**Author:** ![kyleflourish](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kyleflourish/32/65532_2.png) [@kyleflourish](https://devforum.zoom.us/u/kyleflourish)\ **Post date:** [September 24, 2025, 3:36pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/12 "2025-09-24T15:36:22Z")
We are also seeing issues with audio. Generally our staff is able to completely close out and restart the meeting and it resolves the issue. We are using `video_webrtc_mode:1` and the Meeting web SDK version 4.0.7. @elisa.zoom were you able to find anything? I can also DM meeting id’s if it would help. ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [September 26, 2025, 6:59pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/13 "2025-09-26T18:59:49Z")
Hi @kyleflourish I was not able to replicate this on my end. Are you trying this with the latest meeting sdk version? ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [September 26, 2026, 7:00pm UTC](https://devforum.zoom.us/t/issue-with-webrtc-streaming-in-web-sdk/132714/14 "2026-09-26T19:00:45Z")
Closed on September 26, 2026, 7:00pm UTC This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.