[SOLVED] Netgear WAX202 - same SSID on both bands doesn't work

The router in question is not mine. The installed version is 22.03-rc6 (yes, sorry, I need to tell that person that we need to upgrade his router). The use case is to put it near the window and catch the 2.4 GHz signal from there (i.e. a wireless ISP with the SSID "WISP"), perform the NAT, and reshare as three wireless networks with different names.

There is no wired connection.

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 OpenWrt 22.03.0-rc6, r19590-042d558536
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root@OpenWrt:~# cat /etc/config/wireless 

config wifi-device 'radio0'
	option type 'mac80211'
	option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
	option channel '1'
	option band '2g'
	option cell_density '0'
	option htmode 'HE40'
	option noscan '1'
	option country 'PH'

config wifi-device 'radio1'
	option type 'mac80211'
	option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0+1'
	option channel '36'
	option band '5g'
	option htmode 'HE80'
	option cell_density '0'
	option country 'PH'

config wifi-iface 'default_radio1'
	option device 'radio1'
	option network 'lan'
	option mode 'ap'
	option ssid 'MILLER 5G'
	option encryption 'psk2+ccmp'
	option key 'KKKKKKKK'
	option ieee80211w '2'
	option wpa_disable_eapol_key_retries '1'

config wifi-iface 'wifinet2'
	option device 'radio0'
	option mode 'sta'
	option network 'wwan'
	option ssid 'WISP'
	option bssid '74:CC:39:89:34:B0'
	option encryption 'psk2'
	option key 'ZZZZZZZZ'

config wifi-iface 'wifinet3'
	option device 'radio0'
	option mode 'ap'
	option ssid 'MILLER 2.4G'
	option encryption 'psk2+ccmp'
	option key 'KKKKKKKK'
	option ieee80211w '2'
	option wpa_disable_eapol_key_retries '1'
	option network 'lan'

config wifi-iface 'wifinet4'
	option device 'radio0'
	option mode 'ap'
	option ssid 'MILLER AUTO'
	option encryption 'psk2+ccmp'
	option key 'KKKKKKKK'
	option ieee80211r '1'
	option mobility_domain '9123'
	option ft_over_ds '1'
	option ft_psk_generate_local '1'
	option ieee80211w '2'
	option wpa_disable_eapol_key_retries '1'
	option network 'lan'

config wifi-iface 'wifinet5'
	option device 'radio1'
	option mode 'ap'
	option ssid 'MILLER AUTO'
	option encryption 'psk2+ccmp'
	option hidden '1'
	option key 'KKKKKKKK'
	option ieee80211r '1'
	option mobility_domain '9123'
	option ft_over_ds '1'
	option ft_psk_generate_local '1'
	option ieee80211w '2'
	option wpa_disable_eapol_key_retries '1'
	option network 'lan'

The auto-assigned BSSIDs are:

34:98:B5:19:B6:18: WISP (client)
36:98:B5:19:B6:18: MILLER 2.4G
32:98:B5:19:B6:18: MILLER AUTO (on 2.4 GHz)
34:98:B5:19:B6:19: MILLER 5G
36:98:B5:19:B6:19: MILLER AUTO (on 5 GHz) <-- this does not work

The problem is - the "MILLER AUTO" network is only visible on 2.4 GHz. Is this a bug, or expected behavior for a router with two radios on the same chip? In LinSSID, sometimes also appears a strangely looking <mesh MILLER 5G> entry with the BSSID 36:98:B5:19:B6:19 which should be taken by MILLER AUTO on 5 GHz.

On my own Linksys E8450 I have no problem with the same SSID on both bands.

Any ideas why this happens? Did I do anything wrong when setting up that router?

EDIT: Ouch. Somebody set the 5 GHz version of the MILLER AUTO network as hidden. Sorry for the confusion!

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