Can't get Wifi AC up on MPE-8265AC at x86 board

Hi.

I have an x86 router with a miniWLAN MPE-8265AC.
I managed to get the 2.4 band, but at 5 Hz or in AC mode, the card seems to start, but I don't see the network form other devices.

I also noticed something strange. When I add a second access point to LUCI and change its parameters, they also change on the first one. Is that how it should be?

root@Pupircha:~# ubus call system board
{
        "kernel": "6.6.110",
        "hostname": "Pupircha",
        "system": "Intel(R) Celeron(R) CPU  N2940  @ 1.83GHz",
        "model": "To be filled by O.E.M. To be filled by O.E.M.",
        "board_name": "to-be-filled-by-o-e-m-to-be-filled-by-o-e-m",
        "rootfs_type": "squashfs",
        "release": {
                "distribution": "OpenWrt",
                "version": "24.10.4",
                "revision": "r28959-29397011cc",
                "target": "x86/64",
                "description": "OpenWrt 24.10.4 r28959-29397011cc",
                "builddate": "1760891865"
        }
}
root@Pup
root@Pupircha:~# iw list
Wiphy phy0
        wiphy index: 0
        max # scan SSIDs: 20
        max scan IEs length: 413 bytes
        max # sched scan SSIDs: 20
        max # match sets: 11
        Retry short limit: 7
        Retry long limit: 4
        Coverage class: 0 (up to 0m)
        Device supports AP-side u-APSD.
        Available Antennas: TX 0x3 RX 0x3
        Configured Antennas: TX 0x3 RX 0x3
        Supported interface modes:
                 * IBSS
                 * managed
                 * AP
                 * AP/VLAN
                 * monitor
                 * P2P-client
                 * P2P-GO
                 * P2P-device
        Band 1:
                Capabilities: 0x11ef
                        RX LDPC
                        HT20/HT40
                        SM Power Save disabled
                        RX HT20 SGI
                        RX HT40 SGI
                        TX STBC
                        RX STBC 1-stream
                        Max AMSDU length: 3839 bytes
                        DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 4 usec (0x05)
                HT Max RX data rate: 300 Mbps
                HT TX/RX MCS rate indexes supported: 0-15
                Frequencies:
                        * 2412.0 MHz [1] (22.0 dBm)
                        * 2417.0 MHz [2] (22.0 dBm)
                        * 2422.0 MHz [3] (22.0 dBm)
                        * 2427.0 MHz [4] (22.0 dBm)
                        * 2432.0 MHz [5] (22.0 dBm)
                        * 2437.0 MHz [6] (22.0 dBm)
                        * 2442.0 MHz [7] (22.0 dBm)
                        * 2447.0 MHz [8] (22.0 dBm)
                        * 2452.0 MHz [9] (22.0 dBm)
                        * 2457.0 MHz [10] (22.0 dBm)
                        * 2462.0 MHz [11] (22.0 dBm)
                        * 2467.0 MHz [12] (22.0 dBm)
                        * 2472.0 MHz [13] (22.0 dBm)
                        * 2484.0 MHz [14] (disabled)
        Band 2:
                Capabilities: 0x11ef
                        RX LDPC
                        HT20/HT40
                        SM Power Save disabled
                        RX HT20 SGI
                        RX HT40 SGI
                        TX STBC
                        RX STBC 1-stream
                        Max AMSDU length: 3839 bytes
                        DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 4 usec (0x05)
                HT Max RX data rate: 300 Mbps
                HT TX/RX MCS rate indexes supported: 0-15
                VHT Capabilities (0x039071b0):
                        Max MPDU length: 3895
                        Supported Channel Width: neither 160 nor 80+80
                        RX LDPC
                        short GI (80 MHz)
                        TX STBC
                        SU Beamformee
                        MU Beamformee
                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: 0 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: 0 Mbps
                VHT extended NSS: supported
                Frequencies:
                        * 5180.0 MHz [36] (22.0 dBm) (no IR)
                        * 5200.0 MHz [40] (22.0 dBm) (no IR)
                        * 5220.0 MHz [44] (22.0 dBm) (no IR)
                        * 5240.0 MHz [48] (22.0 dBm) (no IR)
                        * 5260.0 MHz [52] (22.0 dBm) (no IR, radar detection)
                        * 5280.0 MHz [56] (22.0 dBm) (no IR, radar detection)
                        * 5300.0 MHz [60] (22.0 dBm) (no IR, radar detection)
                        * 5320.0 MHz [64] (22.0 dBm) (no IR, radar detection)
                        * 5340.0 MHz [68] (disabled)
                        * 5360.0 MHz [72] (disabled)
                        * 5380.0 MHz [76] (disabled)
                        * 5400.0 MHz [80] (disabled)
                        * 5420.0 MHz [84] (disabled)
                        * 5440.0 MHz [88] (disabled)
                        * 5460.0 MHz [92] (disabled)
                        * 5480.0 MHz [96] (disabled)
                        * 5500.0 MHz [100] (22.0 dBm) (no IR, radar detection)
                        * 5520.0 MHz [104] (22.0 dBm) (no IR, radar detection)
                        * 5540.0 MHz [108] (22.0 dBm) (no IR, radar detection)
                        * 5560.0 MHz [112] (22.0 dBm) (no IR, radar detection)
                        * 5580.0 MHz [116] (22.0 dBm) (no IR, radar detection)
                        * 5600.0 MHz [120] (22.0 dBm) (no IR, radar detection)
                        * 5620.0 MHz [124] (22.0 dBm) (no IR, radar detection)
                        * 5640.0 MHz [128] (22.0 dBm) (no IR, radar detection)
                        * 5660.0 MHz [132] (22.0 dBm) (no IR, radar detection)
                        * 5680.0 MHz [136] (22.0 dBm) (no IR, radar detection)
                        * 5700.0 MHz [140] (22.0 dBm) (no IR, radar detection)
                        * 5720.0 MHz [144] (22.0 dBm) (no IR, radar detection)
                        * 5745.0 MHz [149] (22.0 dBm) (no IR)
                        * 5765.0 MHz [153] (22.0 dBm) (no IR)
                        * 5785.0 MHz [157] (22.0 dBm) (no IR)
                        * 5805.0 MHz [161] (22.0 dBm) (no IR)
                        * 5825.0 MHz [165] (22.0 dBm) (no IR)
                        * 5845.0 MHz [169] (disabled)
                        * 5865.0 MHz [173] (disabled)
                        * 5885.0 MHz [177] (disabled)
                        * 5905.0 MHz [181] (disabled)
        valid interface combinations:
                 * #{ managed } <= 1, #{ P2P-client, P2P-GO } <= 1, #{ P2P-device } <= 1,
                   total <= 3, #channels <= 2
                 * #{ managed } <= 1, #{ AP, P2P-client, P2P-GO } <= 1, #{ P2P-device } <= 1,
                   total <= 3, #channels <= 1
        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: 2
        max scan plan interval: 65535
        max scan plan iterations: 254
        Supported extended features:
                * [ VHT_IBSS ]: VHT-IBSS
                * [ RRM ]: RRM
                * [ MU_MIMO_AIR_SNIFFER ]: MU-MIMO sniffer
                * [ SCAN_START_TIME ]: scan start timestamp
                * [ BSS_PARENT_TSF ]: BSS last beacon/probe TSF
                * [ BEACON_RATE_LEGACY ]: legacy beacon rate setting
                * [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
                * [ FILS_MAX_CHANNEL_TIME ]: FILS max channel attribute override with dwell time
                * [ ACCEPT_BCAST_PROBE_RESP ]: accepts broadcast probe response
                * [ OCE_PROBE_REQ_HIGH_TX_RATE ]: probe request TX at high rate (at least 5.5Mbps)
                * [ OCE_PROBE_REQ_DEFERRAL_SUPPRESSION ]: probe request tx deferral and suppression
                * [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
                * [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
                * [ SCAN_MIN_PREQ_CONTENT ]: use probe request with only rate IEs in scans
                * [ EXT_KEY_ID ]: Extended Key ID support
                * [ 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
                * [ PROT_RANGE_NEGO_AND_MEASURE ]: support for MFP in range measurement negotiation/procedure
                * [ POWERED_ADDR_CHANGE ]: can change MAC address while up

phy0-ap0  ESSID: "OpenWrt"
          Access Point: 50:E0:85:A0:94:66
          Mode: Master  Channel: 100 (5.500 GHz)  HT Mode: NOHT
          Center Channel 1: unknown 2: unknown
          Tx-Power: 0 dBm  Link Quality: unknown/70
          Signal: unknown  Noise: unknown
          Bit Rate: unknown
          Encryption: WPA2 PSK (CCMP)
          Type: nl80211  HW Mode(s): 802.11ac/b/g/n
          Hardware: 8086:24FD 8086:8050 [Generic MAC80211]
          TX power offset: unknown
          Frequency offset: unknown
          Supports VAPs: no  PHY name: phy0
root@Pupircha:~#

Dmesg end

[   11.745165] Bridge firewalling registered
[   11.750244] Loading modules backported from Linux version v6.12.52-0-g2b2cbdcede38
[   11.758594] Backport generated by backports.git v6.1.110-1-35-g410656ef
[   11.772375] e1000e: Intel(R) PRO/1000 Network Driver
[   11.778098] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[   11.801908] xt_time: kernel timezone is -0000
[   11.819778] Intel(R) Wireless WiFi driver for Linux
[   11.825493] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[   11.833573] iwlwifi 0000:02:00.0: Detected crf-id 0xbadcafe, cnv-id 0x10 wfpm id 0x80000000
[   11.842686] iwlwifi 0000:02:00.0: PCI dev 24fd/8050, rev=0x230, rfid=0xd55555d5
[   11.850729] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 8265
[   11.881020] iwlwifi 0000:02:00.0: loaded firmware version 36.ca7b901d.0 8265-36.ucode op_mode iwlmvm
[   11.894102] PPP generic driver version 2.4.2
[   11.899742] NET: Registered PF_PPPOX protocol family
[   12.001298] iwlwifi 0000:02:00.0: base HW address: 50:e0:85:a0:94:66, OTP minor version: 0x0
[   12.079488] Console: switching to colour dummy device 80x25
[   12.131770] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[   12.191786] i915 0000:00:02.0: [drm] [ENCODER:87:DP C] failed to retrieve link info, disabling eDP
[   12.233349] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 0
[   12.241833] ACPI: video: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[   12.249799] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input6
[   12.269982] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
[   12.305705] kmodloader: done loading kernel modules from /etc/modules.d/*
[   12.316262] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
[   12.347873] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
[   14.381535] Generic FE-GE Realtek PHY r8169-0-300:00: attached PHY driver (mii_bus:phy_addr=r8169-0-300:00, irq=MAC)
[   14.681551] r8169 0000:03:00.0 eth0: Link is Down
[   14.686302] br-lan: port 1(eth0) entered blocking state
[   14.691553] br-lan: port 1(eth0) entered disabled state
[   14.696807] r8169 0000:03:00.0 eth0: entered allmulticast mode
[   14.702807] r8169 0000:03:00.0 eth0: entered promiscuous mode
[   14.751491] Generic FE-GE Realtek PHY r8169-0-400:00: attached PHY driver (mii_bus:phy_addr=r8169-0-400:00, irq=MAC)
[   15.051630] r8169 0000:04:00.0 eth1: Link is Down
[   17.689419] r8169 0000:03:00.0 eth0: Link is Up - 1Gbps/Full - flow control off
[   17.696830] br-lan: port 1(eth0) entered blocking state
[   17.702090] br-lan: port 1(eth0) entered forwarding state
[   18.434818] overlay: filesystem on /opt/docker/check-overlayfs-support2699644767/upper not supported as upperdir
[   18.545635] r8169 0000:04:00.0 eth1: Link is Up - 1Gbps/Full - flow control off
[   19.404121] br-7f0b91e0aac5: port 1(vethfcf1bbe) entered blocking state
[   19.410759] br-7f0b91e0aac5: port 1(vethfcf1bbe) entered disabled state
[   19.417455] vethfcf1bbe: entered allmulticast mode
[   19.422380] vethfcf1bbe: entered promiscuous mode
[   19.427517] br-7f0b91e0aac5: port 1(vethfcf1bbe) entered blocking state
[   19.434195] br-7f0b91e0aac5: port 1(vethfcf1bbe) entered forwarding state
[   19.441200] br-7f0b91e0aac5: port 1(vethfcf1bbe) entered disabled state
[   19.463999] br-7f0b91e0aac5: port 2(vethef6a3e3) entered blocking state
[   19.470645] br-7f0b91e0aac5: port 2(vethef6a3e3) entered disabled state
[   19.477320] vethef6a3e3: entered allmulticast mode
[   19.482241] vethef6a3e3: entered promiscuous mode
[   19.488316] br-7f0b91e0aac5: port 2(vethef6a3e3) entered blocking state
[   19.494986] br-7f0b91e0aac5: port 2(vethef6a3e3) entered forwarding state
[   19.506504] br-7f0b91e0aac5: port 2(vethef6a3e3) entered disabled state
[   20.333306] eth0: renamed from veth62e7697
[   20.384559] br-7f0b91e0aac5: port 1(vethfcf1bbe) entered blocking state
[   20.391211] br-7f0b91e0aac5: port 1(vethfcf1bbe) entered forwarding state
[   20.399211] eth0: renamed from veth327977a
[   20.443796] br-7f0b91e0aac5: port 2(vethef6a3e3) entered blocking state
[   20.450441] br-7f0b91e0aac5: port 2(vethef6a3e3) entered forwarding state
[   29.026126] php-fpm84[7603]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set
[125845.181404] iwlwifi 0000:02:00.0: Registered PHC clock: iwlwifi-PTP, with index: 0
[125845.190167] br-lan: port 2(phy0-ap0) entered blocking state
[125845.195878] br-lan: port 2(phy0-ap0) entered disabled state
[125845.201566] iwlwifi 0000:02:00.0 phy0-ap0: entered allmulticast mode
[125845.208142] iwlwifi 0000:02:00.0 phy0-ap0: entered promiscuous mode

AFAIK Intel only supports AP on 2.4 802.11n.

1 Like

I also tried 5GHz in N mode. The situation is similar. The AP seems to be working. But I don't see the network.

Try 2.4 instead.

As I wrote in the first post, 2.4 works fine.

Are you sure channel 100 is allowed in RU?

See: https://en.wikipedia.org/wiki/List_of_WLAN_channels#5_GHz_(802.11a/h/n/ac/ax/be)

2 Likes

Wow. Let me try 2 find some supported channel /freq.

Actually, I've been going through a lot of channels. But I didn't see that they were also limited in width.

1 Like

you should probably take the win.

Nope. I tried channel 132 at 20 and 40 Mhz. Nothing changes.
Сan i look at the driver logs somewhere to understand what it needs. Or just try manually going through all the channels?

AP reports 5660.0 MHz [132] (22.0 dBm) (no IR, radar detection)

Sure.

Sure.

Noticed the "TPC" notes?

Tried lowering the power?

But i tryed. No changes.

Intel WLAN cards are not made for AP mode, they explicitly and intentionally don't support AP mode on 5 GHz, at all.

1 Like

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