Orbi backhual connection attempt

I am generally OK with my Orbi it works alright, minor quirk but ok.

I have a NAS connect to a Netgear R7000 which act as a bridge to the Main orbi wifi.  It works but since the bridge is using the fronthaul it limit the speed.  In attempt to access the backhual, which I know is almost impossible from what everyone said, but this is my attempt, maybe other could built on it.

I enable telnet on the Orbi, log in the router

I ran the command "nvram show" which contains tons of info, including settings and suchs

but I found 2 setting to my interests

wla_2nd_ap_bh_ssid=NETGEAR_ORBI_hidden(2 digit number I redacted this for now)

wla_2nd_ap_bh_wpa2_psk= (a very long string of number and letter, looks like encrypted txt, but I don't think so I think it is the key itself, I could be wrong, I try to decrypt this but obiously didn't have any luck)

I tried to use these setting to connect using my labtop and log the event.

The final event that I log is

Connection failed. Interface = Intel(R) Dual Band Wireless-AC 7260, Reason code = 0x38002.  (according to what I found about the code is driver disconnected while associating)

From what I reason is that the key is right, the network name is right, but it Netgear is using something maybe nonstandard so normal client couldn't connect, I hope someone could continue this work.  Administrator, please allow us to connect to backhaul, I don't ask for this as a full blow feature, just make it so that advance user could, I would love to use my R7000 as a direct bridge to the backhual.