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I want to make a WiFi Access Point with Ubuntu 16.04.6 LTS, hostapd and this PCIe WiFi card which supports 802.11a/b/g/n:

Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)

You will find below the result for the command iw list

Wiphy phy0
    max # scan SSIDs: 4
    max scan IEs length: 2257 bytes
    Retry short limit: 7
    Retry long limit: 4
    Coverage class: 0 (up to 0m)
    Device supports RSN-IBSS.
    Device supports AP-side u-APSD.
    Device supports T-DLS.
    Supported Ciphers:
            * WEP40 (00-0f-ac:1)
            * WEP104 (00-0f-ac:5)
            * TKIP (00-0f-ac:2)
            * CCMP (00-0f-ac:4)
            * 00-0f-ac:10
            * GCMP (00-0f-ac:8)
            * 00-0f-ac:9
            * CMAC (00-0f-ac:6)
            * 00-0f-ac:13
            * 00-0f-ac:11
            * 00-0f-ac:12
    Available Antennas: TX 0x3 RX 0x3
    Configured Antennas: TX 0x3 RX 0x3
    Supported interface modes:
             * IBSS
             * managed
             * AP
             * AP/VLAN
             * monitor
             * mesh point
             * P2P-client
             * P2P-GO
             * Unknown mode (11)
    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: 8 usec (0x06)
            HT TX/RX MCS rate indexes supported: 0-15
            Bitrates (non-HT):
                    * 1.0 Mbps
                    * 2.0 Mbps (short preamble supported)
                    * 5.5 Mbps (short preamble supported)
                    * 11.0 Mbps (short preamble supported)
                    * 6.0 Mbps
                    * 9.0 Mbps
                    * 12.0 Mbps
                    * 18.0 Mbps
                    * 24.0 Mbps
                    * 36.0 Mbps
                    * 48.0 Mbps
                    * 54.0 Mbps
            Frequencies:
                    * 2412 MHz [1] (20.0 dBm)
                    * 2417 MHz [2] (20.0 dBm)
                    * 2422 MHz [3] (20.0 dBm)
                    * 2427 MHz [4] (20.0 dBm)
                    * 2432 MHz [5] (20.0 dBm)
                    * 2437 MHz [6] (20.0 dBm)
                    * 2442 MHz [7] (20.0 dBm)
                    * 2447 MHz [8] (20.0 dBm)
                    * 2452 MHz [9] (20.0 dBm)
                    * 2457 MHz [10] (20.0 dBm)
                    * 2462 MHz [11] (20.0 dBm)
                    * 2467 MHz [12] (20.0 dBm) (no IR)
                    * 2472 MHz [13] (20.0 dBm) (no IR)
                    * 2484 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: 8 usec (0x06)
            HT TX/RX MCS rate indexes supported: 0-15
            Bitrates (non-HT):
                    * 6.0 Mbps
                    * 9.0 Mbps
                    * 12.0 Mbps
                    * 18.0 Mbps
                    * 24.0 Mbps
                    * 36.0 Mbps
                    * 48.0 Mbps
                    * 54.0 Mbps
            Frequencies:
                    * 5180 MHz [36] (18.0 dBm) (no IR)
                    * 5200 MHz [40] (18.0 dBm) (no IR)
                    * 5220 MHz [44] (18.0 dBm) (no IR)
                    * 5240 MHz [48] (18.0 dBm) (no IR)
                    * 5260 MHz [52] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5280 MHz [56] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5300 MHz [60] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5320 MHz [64] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5500 MHz [100] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5520 MHz [104] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5540 MHz [108] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5560 MHz [112] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5580 MHz [116] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5600 MHz [120] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5620 MHz [124] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5640 MHz [128] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5660 MHz [132] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5680 MHz [136] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5700 MHz [140] (18.0 dBm) (no IR, radar detection)
                      DFS state: usable (for 1656 sec)
                      DFS CAC time: 60000 ms
                    * 5745 MHz [149] (disabled)
                    * 5765 MHz [153] (disabled)
                    * 5785 MHz [157] (disabled)
                    * 5805 MHz [161] (disabled)
                    * 5825 MHz [165] (disabled)
    Supported commands:
             * new_interface
             * set_interface
             * new_key
             * start_ap
             * new_station
             * new_mpath
             * set_mesh_config
             * set_bss
             * authenticate
             * associate
             * deauthenticate
             * disassociate
             * join_ibss
             * join_mesh
             * remain_on_channel
             * set_tx_bitrate_mask
             * frame
             * frame_wait_cancel
             * set_wiphy_netns
             * set_channel
             * set_wds_peer
             * tdls_mgmt
             * tdls_oper
             * probe_client
             * set_noack_map
             * register_beacons
             * start_p2p_device
             * set_mcast_rate
             * connect
             * disconnect
             * channel_switch
             * Unknown command (104)
             * Unknown command (121)
    Supported TX frame types:
             * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
             * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
             * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
             * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
             * mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
             * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
             * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
             * P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
    Supported RX frame types:
             * IBSS: 0x40 0xb0 0xc0 0xd0
             * managed: 0x40 0xd0
             * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
             * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
             * mesh point: 0xb0 0xc0 0xd0
             * P2P-client: 0x40 0xd0
             * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
             * P2P-device: 0x40 0xd0
    WoWLAN support:
             * wake up on disconnect
             * wake up on magic packet
             * wake up on pattern match, up to 14 patterns of 1-256 bytes,
               maximum packet offset 0 bytes
    software interface modes (can always be added):
             * AP/VLAN
             * monitor
    valid interface combinations:
             * #{ managed } <= 2048, #{ AP, mesh point } <= 8, #{ P2P-client, P2P-GO } <= 1,
               total <= 2048, #channels <= 1, STA/AP BI must match
    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
    Device supports TX status socket option.
    Device supports HT-IBSS.
    Device supports SAE with AUTHENTICATE command
    Device supports low priority scan.
    Device supports scan flush.
    Device supports AP scan.
    Device supports per-vif TX power setting
    P2P GO supports CT window setting
    Driver supports full state transitions for AP/GO clients
    Driver supports a userspace MPM
    Device supports active monitor (which will ACK incoming frames)
    Driver/device bandwidth changes during BSS lifetime (AP/GO mode)

I have written the following hostapd.conf

#the interface used by the AP
interface=wlan_local

# "a" simply means 5GHz
hw_mode=a

# the channel to use, 0 means the AP will search for the channel with the least interferences (ACS)
channel=40
ieee80211d=1
country_code=FR
ieee80211n=1

# 802.11ac support
ieee80211ac=1
wmm_enabled=1

ssid=MYSSID
auth_algs=1
wpa=2
wpa_key_mgmt=WPA-PSK
rsn_pairwise=CCMP
wpa_passphrase=MYPASSWORD

I tried with different channels from 0 to 40, but I still have the following message when I start the service hostapd

hostapd[1937]: wlan_local: IEEE 802.11 Configured channel (40) not found from the channel list of current mode (2) IEEE 802.11a
hostapd[1937]: wlan_local: IEEE 802.11 Hardware does not support configured channel

Do you have any idea? Thanks

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  • 1
    I have Ubuntu desktop 16.04.6 LTS and the device is internal PCIe.
    – Lauradev
    Apr 20, 2020 at 21:09
  • Welcome to AskUbuntu, a small doubt crossed my mind, that you live in the US or Japan, 5Ghz band is regulated per reign. And the device like this might be used without concern in the restricted areas, therefore it has been disabled (silently) and never go near the range. And yes, we got digital tv around 2010 en.wikipedia.org/wiki/IEEE_802.11#Channels_and_frequencies en.wikipedia.org/wiki/IEEE_802.11a-1999 Apr 21, 2020 at 1:28
  • I live in Europe (France). It should be working with channel 40 if my understanding of this page is correct: en.wikipedia.org/wiki/…
    – Lauradev
    Apr 21, 2020 at 7:12
  • @Laurdev, oui, you are right and it should work. However the vender doesn't know where the products will be delivered. And he wants to turn it off before he got in trouble. In a rare case, he knows how to turn it on again. Apr 21, 2020 at 18:33
  • channels in 5Ghz band start at 36 and go from 4 to 4 (40, 44 etc..) untill 200 something. Here is a conf file that works for me: pastebin.com/raw/0XAWQ5WJ
    – kcdtv
    Apr 26, 2020 at 19:32

1 Answer 1

0

I use channel 153 and it works. See below pictures:

configuration

host.conf

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  • 2
    Hello and welcme to AU. Could you post the image as text, instead? This recommendation makes it easier a.o. for the reader(s) to copy the info. Sep 21, 2020 at 11:13

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