Quick tool to open ports VIA UPNP
Download: https://mega.nz/#!oUkzCIDC!8jrAVxHHQTTciA0btvjGlE9iN3qCKFTqzh2TuTL0YjY
Source: https://github.com/JayArrowz/tcp-port-opener
Usage: port nic-ip
Guide:
Step 1: Find out the address for your NIC by typing ipconfig or ifconfig
Step 2:
Run the server or bind any server to a port
Step 3:
Run portopener.jar using java -jar portopener.jar PORT IP
Enjoy!
https://www.canyouseeme.org/
This opens ports with UPNP. If there is no service bound to the port then the port will not be forwarded, so make sure you are running the server before running the port opener.
The program will close the port if exited.