morrownr
[Help]: MT7922e Wi-Fi6 speed not ideal
Checklist
- [x] I acknowledge that support is provided on a best-effort basis.
- [x] I acknowledge that the authors and contributors to this repository cannot be held responsible for the results of my use of any information contained in or linked from this repository.
uname
Linux 6.1.99 #32 SMP Mon Jan 20 15:50:32 CST 2025 aarch64 aarch64 aarch64 GNU/Linux
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 13d3:3568 IMC Networks Wireless_Device
rfkill
0: phy0: Wireless LAN Soft blocked: no Hard blocked: no
dkms
/
iw
phy#0
Interface wlan0
ifindex 4
wdev 0x1
addr 14:13:33:6e:ee:15
ssid mt7922
type AP
channel 36 (5180 MHz), width: 80 MHz, center1: 5210 MHz
txpower 3.00 dBm
multicast TXQ:
qsz-byt qsz-pkt flows drops marks overlmt hashcol tx-bytes tx-packets
0 0 11304 0 0 0 60 4760957 17923
What happened?
I am using an MT7922 PCIe card, serving as an AP, everything is going well. But I heard that the mt79 driver has a 'txpower 3.00 dBm' issue. In the link https://github.com/openwrt/mt76/issues/935#issuecomment-2688143334, your comment indicates that iperf3 can achieve a speed of 1.24 Gbits/sec. I want to improve my bitrate, but I don't know if it's a txpower issue or a problem with my configuration or something else. Below is some output.
iperf3 test, done through 1 wall with about 6 m/20 feet of distance. Even when I conduct an iperf3 download test about 1 feet away from the antenna, the maximum speed is only around 400 Mbps.
$ iperf3 -c 192.168.0.1
Connecting to host 192.168.0.1, port 5201
[ 5] local 192.168.0.177 port 54220 connected to 192.168.0.1 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 38.2 MBytes 319 Mbits/sec
[ 5] 1.00-2.00 sec 38.4 MBytes 323 Mbits/sec
[ 5] 2.00-3.00 sec 37.6 MBytes 315 Mbits/sec
[ 5] 3.00-4.00 sec 37.8 MBytes 318 Mbits/sec
[ 5] 4.00-5.00 sec 36.0 MBytes 302 Mbits/sec
[ 5] 5.00-6.00 sec 38.2 MBytes 320 Mbits/sec
[ 5] 6.00-7.00 sec 38.6 MBytes 323 Mbits/sec
[ 5] 7.00-8.00 sec 36.1 MBytes 303 Mbits/sec
[ 5] 8.00-9.00 sec 38.5 MBytes 324 Mbits/sec
[ 5] 9.00-10.01 sec 36.8 MBytes 307 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.01 sec 376 MBytes 315 Mbits/sec sender
[ 5] 0.00-10.03 sec 374 MBytes 313 Mbits/sec receiver
Current Network Information on the macOS client, operates in 802.11ax mode.
mt7922:
PHY Mode: 802.11ax
Channel: 36
Network Type: Infrastructure
Security: WPA2 Personal
Signal / Noise: -65 dBm / -91 dBm
Transmit Rate: 576
MCS Index: 4
hostapd has been upgraded to the latest following AP_Mode/Upgrade_hostapd.md
$ hostapd -v
hostapd v2.12-devel-hostap_2_11-838-g9fa657a73
User space daemon for IEEE 802.11 AP management,
IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator
Copyright (c) 2002-2024, Jouni Malinen <[email protected]> and contributors
Here is my hostapd-wifi6.conf
interface=wlan0
driver=nl80211
ssid=mt7922
wpa_passphrase=MyPassword
hw_mode=a
channel=36
country_code=US
ieee80211d=1
logger_syslog=-1
logger_syslog_level=2
beacon_int=100
dtim_period=2
skip_inactivity_poll=1
auth_algs=1
max_num_sta=16
macaddr_acl=0
ignore_broadcast_ssid=0
okc=1
wpa=2
wpa_pairwise=CCMP
wpa_key_mgmt=WPA-PSK WPA-PSK-SHA256
wmm_enabled=1
ieee80211n=1
ht_capab=[LDPC][HT40+][HT40-][GF][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][MAX-AMSDU-7935][DSSS_CCK-40]
ieee80211ac=1
vht_oper_chwidth=1
vht_oper_centr_freq_seg0_idx=42
vht_capab=[RXLDPC][SHORT-GI-80][TX-STBC-2BY1][SU-BEAMFORMEE][MU-BEAMFORMEE][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN][RX-STBC-1][BF-ANTENNA-4][MAX-MPDU-11454][MAX-A-MPDU-LEN-EXP7]
ieee80211ax=1
he_oper_chwidth=1
he_oper_centr_freq_seg0_idx=42
