How to test Fastroaming with 2 WDS-APs

Installing and Using OpenWrt
1

There are 2 WDS-access points.

I wanted to play a little bit with fastroaming. I have a situation with a significant change of the signal level. The signal changes if I compare MAC-addresses, but the SSID is of course the same. No idea how I could test with a phone else. So how can I recognize if the AP was changed?

I configured with luci, at the end this were 3 lines in the confige file.

First I tried:

config wifi-iface 'default_radio0'
...
	option ieee80211r '1'
	option ft_over_ds '1'
	option ft_psk_generate_local '1'

config wifi-iface 'wpa3_radio0'
...
	option ieee80211r '1'
	option ft_over_ds '1'
	option ft_psk_generate_local '1'

My phone showed the change of the signal, but not the change of the AP / MAC.

It looks like the AP will never change. In the same time without fastroaming configuration the AP would have been changed since a long time.

Then I tried

option ft_over_ds '0'

The AP was not changed.

What could I have done wrong?