ASUS ROG RAPTURE GT-AXE16000 Firmware version 3006.102.6 UPNP not working

[Kyronism]

ASUS ROG RAPTURE GT-AXE16000 Firmware version 3006.102.6 UPNP not working unless DMZ/OPEN NAT is enabled for a specific IP address and port.
I'm aware that Asus routers with the new Broadcom chips are limited to a port restricted cone NAT, but I'm pretty sure that UPNP should still work alone without DMZ or OPEN NAT.

 

[ColinTaylor]

What makes you think it's not working? How are you testing this?

 

[Kyronism]

What makes you think it's not working? How are you testing this?

I tested listening porta to on my pc by launching a game that utilizes UPNP and then I check if ports are open using port checker tools.

What makes you think it's not working? How are you testing this?

I tested listening ports to on my pc by launching a game that utilizes UPNP and then I check if ports are open using port checker tools.
Another way to check if a port is open is by using the Powershell command, "Test-NetConnection -ComputerName <PUBLIC IP> -Port" and see if it listens. I found out that UPNP doesn't work unless I enable Open NAT or DMZ.
I should've clarified this in my first that I'm have no experience with any other Asuswrt or Asuswrt-merlin versions before this one, I just now bought the router and intalled Asuswrt-merlin immediately.

 

[ColinTaylor]

I tested listening ports to on my pc by launching a game that utilizes UPNP and then I check if ports are open using port checker tools.

Have you tried any other games?

After running the game(s), log into the router and look at the System Log - Port Forwarding page. Do you see the ports listed there?

 

[Kyronism]

Have you tried any other games?

After running the game(s), log into the router and look at the System Log - Port Forwarding page. Do you see the ports listed there?

Oh, I forgot about the system log in the router, no it doesn't show me the ports listed when launching a game, unless I set a DMZ or Open NAT, then it does.

 

[ColinTaylor]

Perhaps miniupnpd has crashed. SSH into the router and see if the process is running:

# ps | grep [m]iniupnpd
 5308 admin     3532 S    miniupnpd -f /etc/upnp/config -1

 

[Kyronism]

It is running, but again no ports are seem to be listening when UPNP alone is enabled.