Tenant Cloud Compute Cloud Virtual Machine Troubleshooting Port Problem Cause Remote Connection Failure

Port Problem Cause Remote Connection Failure

Last Updated At: 2025-11-26 11:12:18

This document introduces the troubleshooting methods and solutions for the situation where a CVM cannot be remotely logged in due to a port problem.

Note:

The following operations take a Windows Server 2012 system CVM as an example.

Troubleshooting Approach

Checking Network Connectivity

You can use the local Ping command to test the network connectivity. At the same time, use computers in different network environments (different IP ranges or different operators) to test and determine whether the issue lies within the local network or on the server side.

  1. Select the appropriate method to open the command line interface based on the operating system of the local computer.

    • Windows System: Click Start > Run and enter cmd, and a command line dialog box pops up.
    • MacOS: Open the Terminal.

  2. Run the following command to test the network connection.

    ping + the public IP address of the CVM instance