AP/VLAN mode is not supported.

[SilverGreen93]

I have a NetGear, Inc. A6150 (with RTL8812BU chip)

iw list does not list the AP/VLAN mode as supported.

Running any application that requires this mode (i.e. hostapd) will result in:

nl80211: Create interface iftype 4 (AP_VLAN)
Failed to create interface wlan0.20: -95 (Operation not supported)

Is there any alternative driver available?

I am using Ubuntu 22.04 with kernel 6.8. The in-kernel driver has support for AP/VLAN, but does allow clients to connect to my AP.
These are the logs from wpa_supplicant trying to associate with the AP, which using the in-build kernel driver:

nl80211: Event message available
nl80211: Drv Event 46 (NL80211_CMD_CONNECT) received for wlan0
nl80211: Connect event (status=1 ignore_next_local_disconnect=0)
wlan0: Event ASSOC_REJECT (12) received
wlan0: CTRL-EVENT-ASSOC-REJECT status_code=1