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TCP port not listing in netstat command

Anonymous
2024-11-27T15:34:32+00:00

when I tried to open a TCP port in inbound rule of windows firewall, either it's not listing in open port list not to telnet to this port. Anybody have nay idea why this port is opening in windows server or in Windows 10.

Windows for business Windows Server Networking Network connectivity and file sharing

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  1. Anonymous
    2024-11-28T01:19:56+00:00

    Hello ,

    Thank you for posting in Microsoft Community forum.
    Based on your description, here are some possible workarounds:

    1. Make sure that the inbound rules you create in your firewall are for the correct port and protocol (TCP). Check the rule's settings to make sure they're enabled.
      Check if the firewall rules restrict specific IP addresses or subnets. If the rule allows only specific IP addresses to access the port, other IP addresses will not be able to connect.
      Firewall rule changes may require a service or computer restart to take effect.
    2. If you have other security software installed, such as anti-virus software or network security tools, they may block the opening of ports. Check the settings of these software to make sure they aren't blocking the ports you need.
    3. Make sure your network is configured correctly, especially if you're using virtual machines or cloud servers. Check the settings of your network adapters to make sure they allow traffic through.
    4. Make sure that the service you want to access through that port is running. For example, if you want to access a web service over port 80, make sure that the web server (such as IIS or Apache) is up and listening on that port.
      Incorrect way of using telnet:
    5. Make sure you use the telnet command in the correct format, e.g. telnet <IP address> <Port number>. If telnet is not installed, it can be added via "Programs and Features" in the "Control Panel".

    If you've checked all of the above and still can't fix the problem, you can try using a command-line tool like netstat to check the status of your port, or a network monitoring tool like Wireshark to analyze your traffic and figure out what the problem is.

    I hope the information above is helpful.
    If you have any questions or concerns, please feel free to let us know.

    Regards,
    Jill Zhou

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