Nighthawk X6 AC3200 R8000 Verify active TCP ports

[H53]

I am getting connection errors and missed this step in the instructions:

If you are using a router, please set up your ports so that the below packets can pass through.
[Ports that may be used]
TCP：80, 443, 54992-54994, 55006-55007, 55021-55040

How do I verify these are passing through or set them to pass through if they are not?

[FURRYe38]

http://canyouseeme.org/ 

Be sure uPnP is enabled or disabled if you configure Port Forwarding on the router. 

Be sure your ISP modem or ONT doesn't have a built in router here. This effect port checking and usage.