# GET "https://rwcdv2.dv.zoom.us/wc/ping/......" 404 not found

**URL:** <https://devforum.zoom.us/t/get-https-rwcdv2-dv-zoom-us-wc-ping-404-not-found/82813>\
**Category:** Web\
**Tags:** api\
**Created:** [February 8, 2023, 7:23pm UTC](https://devforum.zoom.us/t/get-https-rwcdv2-dv-zoom-us-wc-ping-404-not-found/82813 "2023-02-08T19:23:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![axel.ojeda](https://avatars.discourse-cdn.com/v4/letter/a/41988e/32.png) [@axel.ojeda](https://devforum.zoom.us/u/axel.ojeda)\
**Post date:** [February 8, 2023, 7:23pm UTC](https://devforum.zoom.us/t/get-https-rwcdv2-dv-zoom-us-wc-ping-404-not-found/82813/1 "2023-02-08T19:23:22Z")

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I’ve been trying to use the videoSDK sample app for a few weeks but with little to no progress I decided to start over, I’m using the CDN method to get the API, and I’ve been working 1 step at the time I called the API after that did my Authorization Signature, worked just fine and tried to open a session and it failed  
It throw this error:  
“GET `https://rwcdv2.dv.zoom.us/wc/ping/89347160983?ts=1675883443540&auth=-yOv1X2n5wUIZQxREQT0J-l5Tx9EEt30fkuZYEXq2FI&rwcToken=NUEu-2RF5-uudjjrOuCMV9tis-oAby_KThTPuiRQuBE&dmz=1` 404 (Not Found)” I’m currently using version 1.6.0 of VideoSDK, I tried it with older version and still failed and cant really do anything until that is resolved.

I welcome any help

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**Author:** ![vic.yang](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/vic.yang/32/24656_2.png) [@vic.yang](https://devforum.zoom.us/u/vic.yang)\
**Post date:** [February 9, 2023, 4:58am UTC](https://devforum.zoom.us/t/get-https-rwcdv2-dv-zoom-us-wc-ping-404-not-found/82813/2 "2023-02-09T04:58:17Z")

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Hey @axel.ojeda

Thanks for your feedback.

We provide multiple clusters to serve, one cluster cannot access doesn’t affect the video session. Did you connect to another cluster?

Thanks  
Vic

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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:** [March 11, 2023, 2:58pm UTC](https://devforum.zoom.us/t/get-https-rwcdv2-dv-zoom-us-wc-ping-404-not-found/82813/3 "2023-03-11T14:58:37Z")

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Closed on March 11, 2023, 2:58pm UTC

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