I've recently purchased an Archer T3U Plus for creating a Wi-Fi AP in VLAN mode, but It's unstable.
In log, I have these errors :
Sat Jun 7 20:36:22 2025 kern.err kernel: [ 7363.874158] rtw_8822bu 3-1:1.0: error beacon valid
Sat Jun 7 20:36:22 2025 kern.err kernel: [ 7363.875019] rtw_8822bu 3-1:1.0: failed to download drv rsvd page
Sat Jun 7 20:36:22 2025 kern.err kernel: [ 7363.875652] rtw_8822bu 3-1:1.0: failed to download beacon
Sat Jun 7 20:37:19 2025 daemon.warn zabbix_agentd[2305]: Remote command [who | wc -l] result is not unsigned integer
Sat Jun 7 20:37:19 2025 daemon.warn zabbix_agentd[2305]: active check "system.users.num" is not supported: Invalid result. Unsigned integer is expected.
Sat Jun 7 20:37:46 2025 daemon.warn zabbix_agentd[2305]: active check "vfs.file.contents["/sys/class/net/phy0-ap0.18/speed"]" is not supported: Cannot read from file.
Do you have an idea?
Regard
[root@Lucy config]$ ubus call system board
{
"kernel": "6.6.86",
"hostname": "Lucy.drupalista.lan",
"system": "Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz",
"model": "QEMU Standard PC (i440FX + PIIX, 1996)",
"board_name": "qemu-standard-pc-i440fx-piix-1996",
"rootfs_type": "ext4",
"release": {
"distribution": "OpenWrt",
"version": "24.10.1",
"revision": "r28597-0425664679",
"target": "x86/64",
"description": "OpenWrt 24.10.1 r28597-0425664679",
"builddate": "1744562312"
}
}
[root@Lucy config]$ lsusb
Bus 003 Device 002: ID 2357:0138 Realtek 802.11ac NIC
[root@Lucy config]$ lsmod | grep rtw
cfg80211 344064 2 rtw88_core,mac80211
compat 12288 3 rtw88_8822bu,mac80211,cfg80211
mac80211 663552 2 rtw88_usb,rtw88_core
rtw88_8822b 221184 1 rtw88_8822bu
rtw88_8822bu 12288 0
rtw88_core 139264 2 rtw88_8822b,rtw88_usb
rtw88_usb 16384 1 rtw88_8822bu
[root@Lucy config]$ cat wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'pci0000:00/0000:00:1e.0/0000:02:1b.0/usb3/3-1/3-1:1.0'
option band '5g'
option channel '48'
option htmode 'VHT80'
option disabled '0'
option country 'FR'
option cell_density '0'
option log_level '1'
option beacon_int '110'
option txpower '22'
config wifi-iface 'default_radio0'
option device 'radio0'
option mode 'ap'
option ssid 'mySSID'
option encryption 'wpa2'
option auth_server '192.168.14.254'
option dynamic_vlan '1'
option vlan_tagged_interface 'eth0'
option vlan_bridge 'br-vlan'
option auth_secret '***************'
option network 'lan'
option disassoc_low_ack '0'
[root@Lucy config]$ iw list
Wiphy phy0
wiphy index: 0
max # scan SSIDs: 4
max scan IEs length: 2243 bytes
max # sched scan SSIDs: 0
max # match sets: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports T-DLS.
Available Antennas: TX 0x3 RX 0x3
Configured Antennas: TX 0x3 RX 0x3
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
Band 1:
Capabilities: 0x196f
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 2 usec (0x04)
HT Max RX data rate: 300 Mbps
HT TX/RX MCS rate indexes supported: 0-15, 32
Frequencies:
* 2412.0 MHz [1] (20.0 dBm)
* 2417.0 MHz [2] (20.0 dBm)
* 2422.0 MHz [3] (20.0 dBm)
* 2427.0 MHz [4] (20.0 dBm)
* 2432.0 MHz [5] (20.0 dBm)
* 2437.0 MHz [6] (20.0 dBm)
* 2442.0 MHz [7] (20.0 dBm)
* 2447.0 MHz [8] (20.0 dBm)
* 2452.0 MHz [9] (20.0 dBm)
* 2457.0 MHz [10] (20.0 dBm)
* 2462.0 MHz [11] (20.0 dBm)
* 2467.0 MHz [12] (20.0 dBm)
* 2472.0 MHz [13] (20.0 dBm)
* 2484.0 MHz [14] (disabled)
Band 2:
Capabilities: 0x196f
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 2 usec (0x04)
HT Max RX data rate: 300 Mbps
HT TX/RX MCS rate indexes supported: 0-15, 32
VHT Capabilities (0x03d071b2):
Max MPDU length: 11454
Supported Channel Width: neither 160 nor 80+80
RX LDPC
short GI (80 MHz)
TX STBC
SU Beamformee
MU Beamformee
+HTC-VHT
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 780 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 780 Mbps
VHT extended NSS: not supported
Frequencies:
* 5180.0 MHz [36] (23.0 dBm)
* 5200.0 MHz [40] (23.0 dBm)
* 5220.0 MHz [44] (23.0 dBm)
* 5240.0 MHz [48] (23.0 dBm)
* 5260.0 MHz [52] (20.0 dBm) (radar detection)
* 5280.0 MHz [56] (20.0 dBm) (radar detection)
* 5300.0 MHz [60] (20.0 dBm) (radar detection)
* 5320.0 MHz [64] (20.0 dBm) (radar detection)
* 5500.0 MHz [100] (26.0 dBm) (radar detection)
* 5520.0 MHz [104] (26.0 dBm) (radar detection)
* 5540.0 MHz [108] (26.0 dBm) (radar detection)
* 5560.0 MHz [112] (26.0 dBm) (radar detection)
* 5580.0 MHz [116] (26.0 dBm) (radar detection)
* 5600.0 MHz [120] (26.0 dBm) (radar detection)
* 5620.0 MHz [124] (26.0 dBm) (radar detection)
* 5640.0 MHz [128] (26.0 dBm) (radar detection)
* 5660.0 MHz [132] (26.0 dBm) (radar detection)
* 5680.0 MHz [136] (26.0 dBm) (radar detection)
* 5700.0 MHz [140] (26.0 dBm) (radar detection)
* 5720.0 MHz [144] (13.0 dBm) (radar detection)
* 5745.0 MHz [149] (13.0 dBm)
* 5765.0 MHz [153] (13.0 dBm)
* 5785.0 MHz [157] (13.0 dBm)
* 5805.0 MHz [161] (13.0 dBm)
* 5825.0 MHz [165] (13.0 dBm)
interface combinations are not supported
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Supported extended features:
* [ RRM ]: RRM
* [ SET_SCAN_DWELL ]: scan dwell setting
* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
* [ SCAN_RANDOM_SN ]: use random sequence numbers in scans
* [ CAN_REPLACE_PTK0 ]: can safely replace PTK 0 when rekeying
* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
* [ DEL_IBSS_STA ]: deletion of IBSS station support
* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
* [ POWERED_ADDR_CHANGE ]: can change MAC address while up
