Error Code Portal
Node.jsNode.jsError code

ERR_SOCKET_CLOSED_BEFORE_CONNECTION

socket closed before connection

What does this code mean?

Code ERR_SOCKET_CLOSED_BEFORE_CONNECTION · An issue reported by Node.js.

Official explanation · Original text

When calling net.Socket.write() on a connecting socket and the socket was closed before the connection was established.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Errors | Node.js v26.13.1 Documentation ↗

Creator: Node.js contributors; Joyent, Inc. and other Node contributors
License: MIT License (Node.js documentation)
Checked on: 2026-11-12

Modifications: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source details · Original licenses and notices