# Connection Refused when hitting zoom api **URL:** \ **Category:** API and Webhooks\ **Created:** [June 8, 2022, 7:26am UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147 "2022-06-08T07:26:33Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![kmalik554](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kmalik554/32/38216_2.png) [@kmalik554](https://devforum.zoom.us/u/kmalik554)\ **Post date:** [June 8, 2022, 7:26am UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/1 "2022-06-08T07:26:33Z")
**Description** \*When i hit the zoom api it’s show me the connection refused error, either my app is working fine at localhost. i am facing this issue at live website. \* **Error?** \*cURL error 7: Failed to connect to [api.zoom.us](http://api.zoom.us) port 443 after 1157 ms: Connection refused \* **API Endpoint/s?** _[https://api.zoom.us/v2/users?status=active&page\_size=30&page\_number=1](https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1)_ ---
**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:** [June 14, 2022, 9:52pm UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/2 "2022-06-14T21:52:44Z")
Hi @kmalik554 Hope you are doing great! Are you still having this issue? ---
**Author:** ![kmalik554](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kmalik554/32/38216_2.png) [@kmalik554](https://devforum.zoom.us/u/kmalik554)\ **Post date:** [June 17, 2022, 10:07am UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/3 "2022-06-17T10:07:21Z")
Hi @elisa.zoom thanks you for reply on my post. yes still i am facing this problem. ---
**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:** [June 17, 2022, 9:40pm UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/4 "2022-06-17T21:40:44Z")
Thanks @kmalik554 Have you tried calling our API with postman? What type of app are you using to call our API? ---
**Author:** ![kmalik554](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kmalik554/32/38216_2.png) [@kmalik554](https://devforum.zoom.us/u/kmalik554)\ **Post date:** [June 29, 2022, 11:18am UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/5 "2022-06-29T11:18:34Z")
@elisa.zoom thanks for your kind response. once i tried to call by postman it’s working fine. once i try to call with my server then it’s through me this error. either it’s working fine on my localhost. i am using laravel as a framework. also i am using JWT Token for calling API ---
**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:** [June 29, 2022, 4:35pm UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/6 "2022-06-29T16:35:08Z")
Interesting @kmalik554 Have you tried generating the code snippet on postman and use it in your application? I do not see why you are getting it to work on Postman and not within your app ---
**Author:** ![MultiplayerSession](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/multiplayersession/32/66446_2.png) [@MultiplayerSession](https://devforum.zoom.us/u/MultiplayerSession)\ **Post date:** [June 29, 2022, 4:53pm UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/7 "2022-06-29T16:53:10Z")
You might want to check SSL protocol and cipher settings for HTTPS connections and allow the usage of ones that Zoom requires, especially if your production environment is older than your development environment — work with your server administrators to get this information and to troubleshoot. For example, .NET applications sometimes need to manually approve of TLS 1.2 by declaring it with `ServicePointManager.SecurityProtocol`. ---
**Author:** ![kmalik554](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kmalik554/32/38216_2.png) [@kmalik554](https://devforum.zoom.us/u/kmalik554)\ **Post date:** [June 29, 2022, 5:09pm UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/8 "2022-06-29T17:09:39Z")
Thanks @MultiplayerSession and @elisa.zoom for your response. i have disable all the firewall on the server. i through that some firewall block my request but i my issue is remains. same application when i run on my local environment then it’s working fine. also i have check my ssl. i am so worried about it. i need to be complete this task… ☹ ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/5/e/5ea6fcf4f301df69016a61987319cad8ace6dd47.png) ---
**Author:** ![MultiplayerSession](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/multiplayersession/32/66446_2.png) [@MultiplayerSession](https://devforum.zoom.us/u/MultiplayerSession)\ **Post date:** [June 29, 2022, 6:08pm UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/9 "2022-06-29T18:08:39Z")
What happens when you try to connect from the production server using OpenSSL? For example: `openssl s_client -connect api.zoom.us:443` ---
**Author:** ![kmalik554](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kmalik554/32/38216_2.png) [@kmalik554](https://devforum.zoom.us/u/kmalik554)\ **Post date:** [June 30, 2022, 6:06am UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/10 "2022-06-30T06:06:35Z")
Thanks @MultiplayerSession i got your point. i just verify the TLS Version, we are using update TLS 1.3. and when i hit `openssl s_client -connect api.zoom.us:443` it’s return me ssl certificate information ```auto -----END CERTIFICATE----- subject=/C=US/ST=California/L=San Jose/O=Zoom Video Communications, Inc./CN=*.zoom.us issuer=/C=US/O=DigiCert Inc/CN=DigiCert TLS RSA SHA256 2020 CA1 --- No client certificate CA names sent Peer signing digest: SHA512 Server Temp Key: ECDH, P-256, 256 bits --- SSL handshake has read 4415 bytes and written 415 bytes --- New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384 Server public key is 2048 bit Secure Renegotiation IS supported Compression: NONE Expansion: NONE No ALPN negotiated SSL-Session: Protocol : TLSv1.2 Cipher : ECDHE-RSA-AES256-GCM-SHA384 Session-ID: 7DB9BD07F58FE647324581A296E194A8FC3757E952FA078DE26101B10FA7F087 Session-ID-ctx: Master-Key: 81304F346F03A342560E36421B5055D87C3701CD4BDBF268FB3168F531C99C531011C1AA2229775EAB2D86932D144FBD Key-Arg : None Krb5 Principal: None PSK identity: None PSK identity hint: None Start Time: 1656568688 Timeout : 300 (sec) Verify return code: 0 (ok) ``` and when i hit for my now domain it’s also return me ```auto Start Time: 1656568928 Timeout : 300 (sec) Verify return code: 0 (ok) ``` other information hide for security purpose. but it also valid ssl… Is any firewall problem from our side? or would Zoom whitelist my domain/IP at Zoom Server? ---
**Author:** ![MultiplayerSession](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/multiplayersession/32/66446_2.png) [@MultiplayerSession](https://devforum.zoom.us/u/MultiplayerSession)\ **Post date:** [June 30, 2022, 2:58pm UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/11 "2022-06-30T14:58:59Z")
Sounds like you were able to establish a connection using OpenSSL from your production server to Zoom, but your application code cannot from the same server. Then you’ll want to compare how your application is negotiating a connection versus how OpenSSL is negotiating a connection; are there any differences in supported ciphers or protocols? I’m not familiar with your technology stack, so you’ll have to research how to do this for your environment. ---
**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 31, 2022, 12:59am UTC](https://devforum.zoom.us/t/connection-refused-when-hitting-zoom-api/70147/12 "2022-07-31T00:59:51Z")
Closed on July 31, 2022, 12:59am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.