# Update 1.9.6 Cannot join webinar after success init

**URL:** <https://devforum.zoom.us/t/update-1-9-6-cannot-join-webinar-after-success-init/52874>\
**Category:** Web\
**Created:** [June 22, 2021, 9:19am UTC](https://devforum.zoom.us/t/update-1-9-6-cannot-join-webinar-after-success-init/52874 "2021-06-22T09:19:58Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![it17](https://avatars.discourse-cdn.com/v4/letter/i/ea5d25/32.png) [@it17](https://devforum.zoom.us/u/it17)\
**Post date:** [June 22, 2021, 9:19am UTC](https://devforum.zoom.us/t/update-1-9-6-cannot-join-webinar-after-success-init/52874/1 "2021-06-22T09:19:59Z")

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**Description**  
After success ZoomMtg.init we cannot join meeting.

**Error**  
navigator.MediaDevices.getUserMedia error: ,Requested device not found,NotFoundError

**Which Web Client SDK version?**  
We updated zoom version from 1.9.0 to 1.9.6

**To Reproduce(If applicable)**  
When we click on join button, we can see SUCCES INIT message in console.log  
But join doesn’t start.  
We set  
ZoomMtg.setLogLevel(‘error’);  
and we can see  
navigator.MediaDevices.getUserMedia error: ,Requested device not found,NotFoundError

**Screenshots**

 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/3/8/386139915c284d98281d5279355877fb06784807.png)

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

- Device: Desktop pc
- Browser: Chrome
- Browser Version 91.0.4472.101 (official Build) (64 bit)

**Additional context**

Generated signature  
[REDACTED]  
Meeting Id [REDACTED]

Could someone help?  
Thank you

---

<div class="post-metadata">

**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [June 23, 2021, 9:31pm UTC](https://devforum.zoom.us/t/update-1-9-6-cannot-join-webinar-after-success-init/52874/2 "2021-06-23T21:31:19Z")

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Hey @it17,

Thank you for reaching out to the Zoom Developer Forum. Have you had a chance to test this with the [Sample Web App](https://github.com/zoom/sample-app-web)? I’m interested to know if the issue is isolated to your implementation.

Further, please confirm the camera and microphone on the device are accessible and not being used by other applications.

Let me know if that helps.

Thanks,  
Max

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<div class="post-metadata">

**Author:** ![it17](https://avatars.discourse-cdn.com/v4/letter/i/ea5d25/32.png) [@it17](https://devforum.zoom.us/u/it17)\
**Post date:** [June 24, 2021, 1:17pm UTC](https://devforum.zoom.us/t/update-1-9-6-cannot-join-webinar-after-success-init/52874/3 "2021-06-24T13:17:23Z")

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Hi @MaxM ,  
I confirm the camera and microphone are accessible.

When I test the Sample Web App I receive a  
JOIN MEETING TIMEOUT  
Invalid Parameter  
error

 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/b/4/b44f9da1bb737c6278c0e7a12b33d74ca5803173.png)

SIGNATURE: [REDACTED]  
MEETING ID: [REDACTED]

Thank you

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<div class="post-metadata">

**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [June 25, 2021, 9:52pm UTC](https://devforum.zoom.us/t/update-1-9-6-cannot-join-webinar-after-success-init/52874/4 "2021-06-25T21:52:27Z")

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Hey @it17,

Thank you for reaching out to the Zoom Developer Forum. When it comes to the latest signature that you shared, it looks like the API Key was “YOUR\_API\_KEY” instead of the key itself.

I just wanted to make sure that was intentional as part of sharing it and not the cause of the issue you’re seeing with the sample app.

From here, I think the best route is for me to see this issue live. This could mean seeing a public git repo of code that exhibits this issue or setting up a meeting with me by submitting a ticket to [developersupport@zoom.us](mailto:developersupport@zoom.us) with a link to this thread.

Let me know if either works for you.

Thanks,  
Max

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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:** [July 26, 2021, 7:52am UTC](https://devforum.zoom.us/t/update-1-9-6-cannot-join-webinar-after-success-init/52874/5 "2021-07-26T07:52:42Z")

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Closed on July 26, 2021, 7:52am UTC

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