R7800 MESH-SAE-AUTH-FAILURE on 802.11s network

Installing and Using OpenWrt
#1

I just bought a new Netgear r7800 and installed Openwrt 19.07.4

With the same setup as all my other mesh points, everyone but one of them is giving me MESH-SAE-AUTH-FAILURE errors and "blocking" the station.

The others see each other (at least two of them) without any issues.
The mesh is made of heterogeneous hardware (ramips, ath79)

The mesh network is at 2.4GHz

How could I debug it?

#2

I tried both the -ct and the non -ct drivers/firmware, no difference

#3

It looks like it was due to the rssi threshold, instead of rejecting the connection, it was giving authentication errors.

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