ERROR_CONNECTION_REFUSED - 1225 (0x4C9)
The remote computer refused the network connection.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_CONNECTION_REFUSED error code indicates that a network connection attempt was refused by the remote computer. This typically occurs when the requested service is not available or the remote host has explicitly denied the connection.
Error Details
- Error Name: ERROR_CONNECTION_REFUSED
- Numeric Code: 1225 (0x4C9)
- Short Description: The remote computer refused the network connection.
Usage Context
This error is commonly encountered in various network operations, such as making a TCP or UDP connection to a remote host. It can be returned by functions like ConnectEx, WSASend, and others that attempt to establish a network connection.
Developer Interpretation
When this error code is returned, it signifies that the application should handle the situation appropriately, possibly by retrying the operation or informing the user of the failure. The exact cause can vary depending on the context in which the function was called.
Related Errors
ERROR_CONNECTION_ABORTED(10053)ERROR_CONNECTION_RESET(10054)
FAQ
Q: What does ERROR_CONNECTION_REFUSED mean?
A: It indicates that a network connection attempt was refused by the remote computer.
Q: How can I handle this error in my application?
A: You should check if the service is available and retry the operation or inform the user of the failure.
Summary
The ERROR_CONNECTION_REFUSED error code is used to indicate that a network connection was refused by the remote computer. Developers should be prepared to handle such errors gracefully in their applications.