Socket error during Unlisten operation

What does ERR_SOCKET_UNLISTEN mean?

An error occurred during the socket unlisten operation. This indicates a failure to properly stop listening for incoming connections, which could leave resources held or in an unstable state.

• System resource conflict preventing the release of the listen socket.
• Internal operating system error during the unlisten process.
• Modbus TCP port is still actively being accessed by other processes.

Click steps to track your progress.

1. 1

   Restart the controller to force a clean shutdown and release of network services.

2. 2

   Verify that no other processes are interfering with the Modbus TCP listener port.