24.10 Cannot set multiple SSID to different VLAN

Hello,

i have as main router (GL-MT6000) and want to use two COVR-X1860 as AP.
On the Main it is easy to set three VLAN and three different SSID assigned to VLAN without any problems.
On the AP it is possible to create same VLAN and assign the first to one SSID. It is although possible to create other SSID's but if you want to assign it to a different VLAN the save button is without any function, no errors it does nothing.

AP Informations:

### System

|Hostname|OpenWrtAP2|
| --- | --- |
|Model|D-Link COVR-X1860 A1|
|Architecture|MediaTek MT7621 ver:1 eco:3|
|Target Platform|ramips/mt7621|
|Firmware Version|OpenWrt 24.10.0 r28427-6df0e3d02a / LuCI openwrt-24.10 branch 25.014.55016~7046a1c|
|Kernel Version|6.6.73|
|Local Time|2025-04-13 16:23:19|
|Uptime|0h 18m 35s|
|Load Average|0.00, 0.11, 0.12|

Main Network:

config interface 'lan'
        option device 'Swtich.10'
        option proto 'static'
        option ipaddr '192.168.100.1'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option ifname 'eth1'
        option metric '9999'
        option ipv6 '0'
        option delegate '0'
        option addlatency '0'
        option txqueuelen '2000'
        option multipath 'off'
        option ip4table '9999'
        option ip6table '69999'
        option label 'LAN'
        option defaultroute '0'
        option peerdns '0'

config interface 'Gast'
        option proto 'static'
        option device 'Swtich.20'
        option ipaddr '192.168.200.1'
        option netmask '255.255.255.0'
        option multipath 'off'
        option addlatency '0'
        option metric '12'
        option ip4table '12'
        option ip6table '612'

Main wireless (example 5GHz):

config wifi-device 'radio1'
        option type 'mac80211'
        option path 'platform/soc/18000000.wifi+1'
        option band '5g'
        option channel '44'
        option htmode 'HE80'
        option country 'DE'
        option cell_density '0'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'WLAN'
        option encryption 'sae-mixed'
        option key '*********'
        option ocv '0'
        option wpa_disable_eapol_key_retries '1'
        option ieee80211r '1'
        option nasid '0001'
        option mobility_domain '10E2'
        option ft_over_ds '0'

config wifi-iface 'wifinet3'
        option device 'radio1'
        option mode 'ap'
        option ssid 'Gast'
        option encryption 'sae-mixed'
        option key '*************'
        option ocv '0'
        option wpa_disable_eapol_key_retries '1'
        option network 'Gast'
        option ieee80211r '1'
        option nasid '0001'
        option mobility_domain '10E2'
        option ft_over_ds '0'

AP network:

config interface 'lan'
        option device 'Switch.10'
        option proto 'static'
        option ipaddr '192.168.100.3'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option gateway '192.168.100.1'
        list dns '192.168.100.1'

config interface 'Gast'
        option proto 'none'
        option device 'Switch.20'

AP wireless:

config wifi-device 'radio1'
        option type 'mac80211'
        option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0+1'
        option band '5g'
        option channel '44'
        option htmode 'HE80'
        option country 'DE'
        option cell_density '0'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'WLAN'
        option encryption 'sae-mixed'
        option key '*****************'
        option ieee80211r '1'
        option nasid '0003'
        option mobility_domain '10E2'
        option ft_over_ds '0'
        option ocv '0'
        option wpa_disable_eapol_key_retries '1'

config wifi-iface 'wifinet2'
        option device 'radio1'
        option mode 'ap'
        option ssid 'Gast'
        option encryption 'sae-mixed'
        option key '***************'
        option ieee80211r '1'
        option nasid '0003'
        option mobility_domain '10E2'
        option ft_over_ds '0'
        option ocv '0'

As you see, it is possible to create another SSID with unspecified network, but it es not possible to assing this with Switch.20.

Mobility domain makes sense for identically named APs only.
install ip-bridge and check whether hostap ports are in intended vlans using bridge vlan

All AP named same. The Goals are three different SSID in different subnet.
To get all this from Main to AP over one cable, i want to use VLAN and trunk this cable connection.

How can i check this?

One AP reset to factory defaults, it is possible to assign the second VLAN to new SSID.
The only different between this both AP is that to the beginng i updated all packages:

luci-mod-system - 24.336.49068~ef16778 - 25.101.72693~01ad63e
libnl-tiny1 - 2023.12.05~965c4bf4-r1 - 2025.03.19~c0df580a-r1
ucode-mod-uloop - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
ucode-mod-ubus - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
luci-theme-bootstrap - 24.357.59015~779ca14 - 25.101.72693~01ad63e
ucode-mod-uci - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
ucode-mod-math - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
luci-mod-status - 25.009.65022~20bf9a4 - 25.101.72693~01ad63e
luci-app-firewall - 25.014.06885~bd39c63 - 25.101.72693~01ad63e
libmbedtls21 - 3.6.2-r1 - 3.6.3-r1
ucode-mod-fs - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
luci-ssl - 24.328.43591~9e70c9a - 25.101.72693~01ad63e
ucode-mod-nl80211 - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
ucode - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
luci-app-package-manager - 24.341.02353~276fef8 - 25.101.72693~01ad63e
luci-proto-ppp - 25.009.71487~a88d4af - 25.101.72693~01ad63e
luci-mod-admin-full - 19.253.48496~3f93650 - 25.101.72693~01ad63e
luci-base - 25.014.55016~7046a1c - 25.101.72693~01ad63e
luci-proto-ipv6 - 24.350.69236~8d13ea4 - 25.101.72693~01ad63e
ucode-mod-rtnl - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
luci - 24.297.79519~bcd13b9 - 25.101.72693~01ad63e
luci-light - 23.024.33244~34dee82 - 25.101.72693~01ad63e
luci-mod-network - 25.021.30718~36b6107 - 25.101.72693~01ad63e
libucode20230711 - 2024.07.22~b610860d-r3 - 2025.02.10~a8a11aea-r1
wireless-regdb - 2024.10.07-r1 - 2025.02.20-r1

So this might be the problem.

Upgrading packages (via the CLI opkg upgrade command or the LuCI Upgrade... button) can result in major problems. It is generally highly discouraged, unless you know what you are doing or if there is specific instruction to do so.

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