Good Windows app for checking open TCP/UDP ports open or closed. That being said, while using Windows 8.1. Text doesn't display properly if split left or right of display. Also, display became blank setting port range to 65535 after completion.

Port Checker - Check Open Ports Online Port Checker is a simple and free online tool for checking open ports on your computer/device, often useful in testing port forwarding settings on a router. For instance, if you're facing connection issues with a program (email, IM client etc) then it may be possible that the port required by the application is getting blocked by your router's How To Open Firewall Ports In Windows 10 | Tom's Hardware Feb 03, 2018

How to Find Out List of All Open Ports in Linux

How to Find Out List of All Open Ports in Linux May 02, 2017 How to open ports in a Mac OS X firewall - Macworld UK

How to Open a Port on an Arris Modem | Techwalla

Jul 01, 2006 Open Ports on a Netgear Router(TCP/UDP) - VisiHow I'm trying to open ports so I can host a server, the ports I need open are 7777 and 27015, I've put them in both port forwarding and port triggering, is there anywhere else that I need to change settings on a Netgear D6200. I have tried: I've tried opening any port and updating my router firmware . How to open a Port in IPtables Firewall on a Linux server