I wanted to say thank all u guys.
I needed to put a especific MAC addres in wan port to my internet to work. So, i need openwrt.
I have a old monster, wrt4300. Its all fine, but i wanted a new, more modern, device. So i decided to buy that AX6S.
I bought one when this topic has caught my attention.
Arrived for me a rb03 version with telnet disable. Made all the sugestion and got openwrt on that device.
Sooo, i put my MAC addres in wan port and i got a crazy situation.
My AX6S got internet, it able to update himself in sofware tab but none device conected to it got internet. I tried so many configuration that i lost conection to the device.
So, i reseted it pressing 10s the physical button.
Puted my mac addres again, the same way i did before and.... its all fine now! great velocity, great stability. Just a astonithing work of all u guys. Thanks again!!!