# When my source code request open api gets response error about 52.202.62.238 / 52.202.62.237

**URL:** <https://devforum.zoom.us/t/when-my-source-code-request-open-api-gets-response-error-about-52-202-62-238-52-202-62-237/63263>\
**Category:** API and Webhooks\
**Created:** [January 27, 2022, 5:06am UTC](https://devforum.zoom.us/t/when-my-source-code-request-open-api-gets-response-error-about-52-202-62-238-52-202-62-237/63263 "2022-01-27T05:06:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Derrek](https://avatars.discourse-cdn.com/v4/letter/d/ea5d25/32.png) [@Derrek](https://devforum.zoom.us/u/Derrek)\
**Post date:** [January 27, 2022, 5:06am UTC](https://devforum.zoom.us/t/when-my-source-code-request-open-api-gets-response-error-about-52-202-62-238-52-202-62-237/63263/1 "2022-01-27T05:06:43Z")

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Hello, my name is Derrek

I’m trying to use zoom JWT open api on my web site,  
but when i enter my page it gets response error ‘System.Net.Sockets.SocketException’ and also tells me couldn’t get response from host **52.202.62.237:443’ / '52.202.62.238:443.**

but i already set my whitelist of zoom domain and ip that shows on this page

> **[Zoom network firewall or proxy server settings](https://support.zoom.us/hc/en-us/articles/201362683-Zoom-network-firewall-or-proxy-server-settings)**
>
> If your app stays in a "connecting" mode or has timed out due to Network error, please try again or Can't connect to our service, please check your network connection and try again issues, it could...

and also its weird that **52.202.62.237:443 / 52.202.62.238:443** ip is not on that page list…  
can i get some advice of this error

the below is my [vb.net](http://vb.net) code

```auto
Dim url as String = "https://api.zoom.us/v2/users"
Dim request as HttpWebRequest
Dim response as HttpWebResponse

request = DirectCast(WebRequest.Create(url), HttpWebRequest)
request.ContentType = "application/json"
request.Headers.Add("autorization", Bearer **My Token** )

response = DirectCast(request.GetResponse(), HttpWebResponse) // Gets Error Here

```

Thank you

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<div class="post-metadata">

**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:** [February 26, 2022, 3:07pm UTC](https://devforum.zoom.us/t/when-my-source-code-request-open-api-gets-response-error-about-52-202-62-238-52-202-62-237/63263/2 "2022-02-26T15:07:15Z")

</div>

Closed on February 26, 2022, 3:07pm UTC

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