Ports not opening

Port forwarding worked fine on my Nighthawk R7000 but I'm having trouble with my new Nighthawk RAX30.

• My laptop has a reserved IP address. I have also used ipconfig to confirm that it is using this address
• I follow the instructions in the manual: navigate to Advanced > Advanced Setup > Port Forwarding / Port Triggering, select Port Forwarding radio button, click Add Custom Service. Then I create service name, select TCP/UDP, set the port number (same for internal/external), and select the device (confirming the correct IP address).
• This same setup worked fine on my R7000
• I've restarted the modem (Netgear CM1000), router, and laptop multiple times since configuring port forwarding

I have confirmed using multiple "pork checker" websites that the port is closed, and my friends are no longer able to connect to the games I am hosting. Please help. Thanks.