Hi,
I use a Intel Dual Band Wireless-N 7265. The OS is Linux Debian 8 (Kernel
3.16.0-4_amd64).
Do you know the limit of the number of users connected at the same time on the
wifi? Works fine with 14 connected devices but not more.
How to increase it?
This limit is hardware?
I can't find information about this.
# Technical information
iw list
Wiphy phy0
max # scan SSIDs: 20
max scan IEs length: 393 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.
Supported Ciphers:
* CCMP (00-0f-ac:4)
* TKIP (00-0f-ac:2)
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* CMAC (00-0f-ac:6)
* WPI-SMS4 (00-14-72:1)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* P2P-client
* P2P-GO
* P2P-device
Band 1:
Capabilities: 0x11e2
HT20/HT40
Static SM Power Save
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 TX/RX MCS rate indexes supported: 0-15, 32
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)
Band 2:
Capabilities: 0x11e2
HT20/HT40
Static SM Power Save
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 TX/RX MCS rate indexes supported: 0-15, 32
VHT Capabilities (0x038071a0):
Max MPDU length: 3895
Supported Channel Width: neither 160 nor 80+80
short GI (80 MHz)
TX STBC
SU 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
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] (20.0 dBm) (no IR)
* 5200 MHz [40] (20.0 dBm) (no IR)
* 5220 MHz [44] (20.0 dBm) (no IR)
* 5240 MHz [48] (20.0 dBm) (no IR)
* 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5500 MHz [100] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5520 MHz [104] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5540 MHz [108] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5560 MHz [112] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5580 MHz [116] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5600 MHz [120] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5620 MHz [124] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5640 MHz [128] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5660 MHz [132] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5680 MHz [136] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5700 MHz [140] (22.0 dBm) (no IR, radar detection)
DFS state: usable (for 544 sec)
DFS CAC time: 60000 ms
* 5720 MHz [144] (disabled)
* 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
* start_sched_scan
* probe_client
* set_noack_map
* register_beacons
* start_p2p_device
* set_mcast_rate
* Unknown command (104)
* connect
* disconnect
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 20 patterns of 16-128 bytes,
maximum packet offset 0 bytes
* can do GTK rekeying
* wake up on GTK rekey failure
* wake up on EAP identity request
* wake up on 4-way handshake
* wake up on rfkill release
* wake up on TCP connection
software interface modes (can always be added):
* AP/VLAN
* monitor
valid interface combinations:
* #{ 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
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports SAE with AUTHENTICATE command
Device supports scan flush.
Device supports per-vif TX power setting
P2P GO supports CT window setting
P2P GO supports opportunistic powersave setting
Driver supports a userspace MPM
lspci | grep "Network"
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 61)
nano /etc/hostapd/hostapd.conf
country_code=FR
driver=nl80211
ssid=SSID-TEST
interface=wlan0
hw_mode=g
channel=5
wmm_enabled=1
auth_algs=1
ieee80211n=1
ht_capab=[SHORT-GI-40][HT40+][HT40-][DSSS_CCK-40][SHORT-GI-20][SHORT-GI-40]
Best regards.
Mickaël PANNEQUIN
