Error Code Portal
MicrosoftWindows Win32Error code

746

ERROR_PRIMARY_TRANSPORT_CONNECT_FAILED

Alternative forms: 0x000002EA · 0x2EA · ERROR_PRIMARY_TRANSPORT_CONNECT_FAILED · 0x800702EA

What does this code mean?

Code 746 · An issue reported by Windows Win32.

Official explanation · Original text

{Connect Failure on Primary Transport} An attempt was made to connect to the remote server %hs on the primary transport, but the connection failed. The computer WAS able to connect on a secondary transport.

Troubleshooting and diagnostic links

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

Source and terms of use

System Error Codes (500-999) (WinError.h) ↗

Creator: Microsoft and MicrosoftDocs contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source details · Original licenses and notices