Configure HAG DGA 4131 and Asus RT-AC68U in cascade (Problem DDNS)

[alpha45]

Hello,
I know it's an old topic, but only now have they updated the line and I had to cascade an Asus RT-AC68U to the DGA 4131.
Since you are very prepared, I ask you for help; everything works relatively well, but a fact happens: the Cam occasionally disconnects and I have to restart it manually.
Furthermore, the following warning appears in the router's DDNS entry and I don't know how to get out:
Problem:
"The wireless router currently uses a private WAN IP address (192.168.x.x, 10.x.x.x, or 172.16.x.x).
This router could be in a multi-NAT environment and the DDNS service cannot work in this environment. "
I have a fixed public IP: 2.229.XXX.XXX.
Part HAG:

 

[alpha45]

continue Hag:

 

[alpha45]

Asus:
Where did I go wrong?
Thank you!!

 

[ColinTaylor]

Furthermore, the following warning appears in the router's DDNS entry and I don't know how to get out:
Problem:
"The wireless router currently uses a private WAN IP address (192.168.x.x, 10.x.x.x, or 172.16.x.x).
This router could be in a multi-NAT environment and the DDNS service cannot work in this environment. "
I have a fixed public IP: 2.229.XXX.XXX.

The message is just a warning. If you don't use DDNS to access that router remotely from the internet you can ignore that message.

 

[alpha45]

The message is just a warning. If you don't use DDNS to access that router remotely from the internet you can ignore that message.

And if I need to access the router remotely, is there a solution?
I thank

 

[ColinTaylor]

And if I need to access the router remotely, is there a solution?

There are a few options. Do you actually need to access the router remotely using DDNS or is this just a theoretical question?

 

[alpha45]

There are a few options. Do you actually need to access the router remotely using DDNS or is this just a theoretical question?

I need to read a HDD on the router's USB port.
Thanks

 

[ColinTaylor]

The easiest solution would be to install Merlin's firmware on the router instead of the stock Asus firmware. Merlin's firmware has an option to fix this DDNS problem.