Open up ports manually.
1 CHECK OUT AN APP’S INTERNET NEEDS
Any app on your computer (or other device) that needs access to the internet should make it clear what you need to do in order to open up access to it. You should start by looking into the program’s own settings to find out where you determine which ports it requires and the steps you need to follow to make it work.
2 SET STATIC IP ADDRESS
If you’ve not already done so, you’ll need to set up a static IP address for the device that is running the application. In Windows 10, you should follow the guide at portforward.com/ networking/static-ip-windows-10. htm. Make sure that you give the device an IP address which doesn’t clash with your router’s DHCP server.
3 ADD NEW PORT
Armed with the instructions provided in from the site in Step 2, locate the port forwarding section of your router’s configuration utility. Now create a new port, entering the port number into both port fields and your device’s IP address into the IP Address field. Click Save or Enable to test the connection and see if it’s working correctly.