# Join Error when webinar is in Preview Mode

**URL:** <https://devforum.zoom.us/t/join-error-when-webinar-is-in-preview-mode/117976>\
**Category:** Web\
**Created:** [September 24, 2024, 1:15am UTC](https://devforum.zoom.us/t/join-error-when-webinar-is-in-preview-mode/117976 "2024-09-24T01:15:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![geoff](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/geoff/32/47023_2.png) [@geoff](https://devforum.zoom.us/u/geoff)\
**Post date:** [September 24, 2024, 1:15am UTC](https://devforum.zoom.us/t/join-error-when-webinar-is-in-preview-mode/117976/1 "2024-09-24T01:15:47Z")

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**Description**  
We have regular/recurring webinars. The host starts the webinar in preview mode while preparing the presenter. When the user is in the waiting room, and the webinar is in preview mode, zoom attempts to join the meeting. It fails to join, with a popup message:  
Joining Webinar Timeout or Browser restriction

Meeting has not started

Error Code:3008

This is new behaviour since upgrading from 2.16 to 3.8.5. Still exists in 3.8.10

**Browser Console Error**

_join error code: 3008 Meeting has not started [zoomus-websdk-main-client.umd.min.js:84:1185245](https://source.zoom.us/3.8.10/ui/zoomus-websdk-main-client.umd.min.js)_

_handleRendererTypeInProps() final rendererType=1 gpuBlacklist=null [js\_media.min.js:1:557313](https://source.zoom.us/3.8.10/lib/av/js_media.min.js)_

_websocket onclose event: type:close code:1006 reason: timeStamp:39518 target:3 url:wss://zoomct1342241527rwg.cloud.zoom.us/wc/api/89102555090?ts=1727139361080&auth=iVChMab2I49MtiztW-71HR-V4LOBZDdRJ2e7gzVhKPA&trackAuth=7FdTn6ufKoYhrB8Gb5FOlEqLxCEK7hJwxWJg7epkLig&mid=WjqlkkeGTQya5PD6RZg7HA%3D%3D&tid=v%3D2.0%3Bclid%3Dus02%3Brid%3DWEB\_71dfe8bc9fa837ddf5219da5bc393c58&browser=Firefox130&ZM-CID=713604a2-cf3b-4b24-9f6b-13ca4977179b&lang=en&wccv=20.6.0&jscv=3.8.10&isCamera=1&as\_type=2&rwcAuth=MTcyNzEzOTM2MTQzNC5qWclOXI-woWm31IG82dVemjQUaJD92Y-HELGrl-RY3A&islch=1&email=brian\_mould%[40hotmail.com](http://40hotmail.com)&cfs=0&clientCaps=266849914&clientOS=win&audioFeature=12 [@zoom\_meetingsdk.js:10018:24](http://localhost:5173/node_modules/.vite/deps/@zoom_meetingsdk.js?v=75b4ad1f)_

_close web socket connection… [@zoom\_meetingsdk.js:10020:24](http://localhost:5173/node_modules/.vite/deps/@zoom_meetingsdk.js?v=75b4ad1f)_

_Uncaught (in promise) TypeError: URL constructor: undefined is not a valid URL._

_initAudioDecode [https://source.zoom.us/3.8.10/lib/av/js\_media.min.js:1](https://source.zoom.us/3.8.10/lib/av/js_media.min.js:1)_

_WebRTC: ICE failed, add a STUN server and see about:webrtc for more details_  
_WebRTC: ICE failed, add a STUN server and see about:webrtc for more details_

**Which Web Meeting SDK version?**  
3.8.10

**Meeting SDK Code Snippets**  
The code snippets that are causing the error / issue so we can reproduce.

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Create recurring webinar. Enable ‘Preview’
2. Join webinar as user
3. Start webinar in Preview Mode
4. See error within 1 minute

**Screenshots**  
 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/1/3/135b2934d1272e093f1bfc4af97028aeee328471.png)

**Troubleshooting Routes**  
The troubleshooting attempt types you’ve already exhausted, including testing with the appropriate sample app (found on [Zoom · GitHub](https://github.com/zoom)).

**Device (please complete the following information):**

- Across all browsers/devices tested.

**Additional context**  
Web SDK running in Client View, in a Vue3 web application.

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<div class="post-metadata">

**Author:** ![geoff](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/geoff/32/47023_2.png) [@geoff](https://devforum.zoom.us/u/geoff)\
**Post date:** [September 25, 2024, 3:57pm UTC](https://devforum.zoom.us/t/join-error-when-webinar-is-in-preview-mode/117976/2 "2024-09-25T15:57:13Z")

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Is there any chance of assistance here? Anyone else encounter this issue?  
Thanks.

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**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:** [October 26, 2024, 1:57am UTC](https://devforum.zoom.us/t/join-error-when-webinar-is-in-preview-mode/117976/3 "2024-10-26T01:57:58Z")

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Closed on October 26, 2024, 1:57am UTC

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