Topic: Port checker
Hi
ISP: Comcast
OS: OS X
When I checked port 81, it failed. so I would like to know the next step to find usable port.
Also, I would like to know if Port Checker needs
1) port 81 forwarding setting on router before test
and/or
2) local web server start at 81/80 before test.
Thanks,
Ken
ISP: Comcast
OS: OS X
When I checked port 81, it failed. so I would like to know the next step to find usable port.
Also, I would like to know if Port Checker needs
1) port 81 forwarding setting on router before test
and/or
2) local web server start at 81/80 before test.
Thanks,
Ken
Reply with quote | Report
Comcast has a list of well-known blocked ports. You may view it at http://businesshelp.comcast.com/help-and-support/internet/ports-blocked-on-comcast-network/.
Port 81 is not known to be blocked. You need to set up port forwarding in the router before you use the port check tool.
Port 81 is not known to be blocked. You need to set up port forwarding in the router before you use the port check tool.
Reply with quote | Report
Author | Topic: Port checker |
---|---|
Ken Naganuma Joined: 1/25/2016 |
![]() Tuesday, January 26, 2016 7:37 AM
Hi
ISP: Comcast OS: OS X When I checked port 81, it failed. so I would like to know the next step to find usable port. Also, I would like to know if Port Checker needs 1) port 81 forwarding setting on router before test and/or 2) local web server start at 81/80 before test. Thanks, Ken |
timothytw Joined: 5/2/2002 |
![]() Wednesday, January 27, 2016 1:08 PM
Comcast has a list of well-known blocked ports. You may view it at http://businesshelp.comcast.com/help-and-support/internet/ports-blocked-on-comcast-network/.
Port 81 is not known to be blocked. You need to set up port forwarding in the router before you use the port check tool. |

Monday, April 7, 2025 1:50 AM