https://community.developer.cybersource.com/t5/Integration-and-Testing/Getting-read-ECONNRESET-error-while-calling-https-apitest/m-p/88855#M55989 <P>Getting read ECONNRESET error while calling <A href="https://apitest.cybersource.com/microform/v2/sessions" target="_blank">https://apitest.cybersource.com/microform/v2/sessions</A> through postman or c# code. However with the same request header and body using cybersource Rest client, provided by cybersource, I am able to see the response as expected. Please be noted that I have Key, secret key and merchant id for sandbox account. What could be the possible reason.</P> Tue, 20 Feb 2024 05:11:41 GMT pp_sandbox 2024-02-20T05:11:41Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Getting-read-ECONNRESET-error-while-calling-https-apitest/m-p/88855#M55989 <P>Getting read ECONNRESET error while calling <A href="https://apitest.cybersource.com/microform/v2/sessions" target="_blank">https://apitest.cybersource.com/microform/v2/sessions</A> through postman or c# code. However with the same request header and body using cybersource Rest client, provided by cybersource, I am able to see the response as expected. Please be noted that I have Key, secret key and merchant id for sandbox account. What could be the possible reason.</P> Tue, 20 Feb 2024 05:11:41 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Getting-read-ECONNRESET-error-while-calling-https-apitest/m-p/88855#M55989 pp_sandbox 2024-02-20T05:11:41Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Getting-read-ECONNRESET-error-while-calling-https-apitest/m-p/88896#M56015 <P>The `ECONNRESET` error during calls to `<A href="https://apitest.cybersource.com/microform/v2/sessions" target="_blank">https://apitest.cybersource.com/microform/v2/sessions</A>` suggests a connection reset by the server. Possible reasons include firewall/network issues, TLS/SSL misconfigurations, proxy problems, header/body inconsistencies, rate limiting, or API endpoint errors. Ensure correct TLS/SSL settings, validate headers/body, and check for rate limits. If using a proxy, configure it correctly. Contact Cybersource support for assistance and verify network/firewall configurations. If the Cybersource Rest client works, compare its settings with Postman or C# code to identify discrepancies.</P> Mon, 26 Feb 2024 12:26:49 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Getting-read-ECONNRESET-error-while-calling-https-apitest/m-p/88896#M56015 Keelyredina 2024-02-26T12:26:49Z