How To Use Portqry __top__ Jun 2026

| Result | Meaning | |--------|---------| | | A service is bound to the port and responded. | | FILTERED | No response received (firewall drop, host down, or no service). | | NOT LISTENING | Reached the host, but no service on that port (RST received). |

To use , a powerful command-line tool from Microsoft, you can troubleshoot network connectivity by checking the status of TCP and UDP ports on local or remote systems. Getting Started how to use portqry

Sometimes firewalls block traffic based on the source port (e.g., blocking all traffic not coming from port 53). You can specify which port PortQry uses to send the request. | Result | Meaning | |--------|---------| | |

HTTP response: 200 OK

If command lines aren’t your style: