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How to Fix SharePoint REST API ECONNRESET Error in Postman

Steve K Oct 12, 2026 868 views

Question details

The user is unable to complete a POST request to the SharePoint REST API via Postman due to a connection reset error.

How to Fix SharePoint REST API ECONNRESET Error in Postman

Product: SharePoint / Postman
Device & OS: not provided
Scenario: Attempting to send a POST request to the SharePoint REST API after successfully obtaining an access token.
Observed behavior: The POST request fails and returns a 'read ECONNRESET' error despite the authentication request succeeding.

Before you start

Verify that your local firewall or VPN is not abruptly terminating the connection, and ensure your Postman application is updated to the latest version.

Solution 1Recommended

Seek Specialist Support on Microsoft Q&A

Since SharePoint API connection drops often relate to specific tenant configurations, getting specialized help from Microsoft developer support is recommended.

An ECONNRESET error signifies that the remote server unexpectedly dropped the TCP connection. While authentication might succeed on a separate Azure AD endpoint, the actual SharePoint tenant endpoint might reject or drop the connection due to malformed headers, missing content-length attributes, or strict throttling policies.

Gather Request Information

Collect your complete request details, including the endpoint URL, all HTTP headers, the JSON payload, and the exact error message shown in the Postman console.

Access Microsoft Q&A

Navigate to the official Microsoft Q&A platform, which is the designated forum for Microsoft developer and API support.

Post Your Issue with Correct Tags

Create a new question detailing your Postman setup. Make sure to apply the 'SharePoint' and 'SharePoint Development' tags so the correct engineers see your inquiry.

Seek Specialist Support on Microsoft Q&A

Review Postman Proxy Settings: Before posting, you can also try navigating to Postman Settings > Proxy and temporarily disabling the default proxy configurations to rule out local network interference.

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Frequently Asked Questions

What does 'read ECONNRESET' mean in Postman?

The ECONNRESET error occurs when the remote server (or an intermediary proxy) unexpectedly terminates the TCP connection. In the context of API testing, it usually points to network issues, rate limiting, or rejected request headers.

Why does authentication work but the SharePoint POST request fails?

Authentication requests are typically processed by separate authorization servers (like Azure Active Directory). Your network may allow traffic to the authentication server, but a firewall or tenant policy might be dropping the connection to the specific SharePoint endpoint.

Can SSL settings in Postman cause an ECONNRESET error?

Yes, SSL handshake failures can sometimes result in dropped connections. You can test this by navigating to Postman's general settings and turning off 'SSL certificate verification' to see if the request succeeds.

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