Hi,
I have a TP LINK tl-wr940n v6 with openwrt 18.06 and I have a link with 100M/100M downlink and uplink. Under eth connection I have no problem (I reached 98M/98M), but in wifi a strange behavior happens:
I reach 25M in download and 53M in upload. I know that I can't reach full 100M, but I am not able to understand why the speed is doubled in uplink.
My wifi configuration is the following:
config wifi-device 'radio0'
option type 'mac80211'
option hwmode '11g'
option path 'platform/qca956x_wmac'
option noscan '1'
option disabled '0'
option legacy_rates '0'
option diversity '0'
option wmm '1'
option require_mode 'n'
option rxantenna '111'
option txantenna '111'
option distance '100'
option txpower '20'
option htmode 'HT40'
option channel '7'
option country '00'
config wifi-iface 'default_radio0'
option device 'radio0'
option mode 'ap'
option network 'lan'
option key 'password'
option encryption 'psk2+ccmp'
option ssid 'test'
option wps_pushbutton '0'
I also attach other infos:
$ iw dev wlan0 info
Interface wlan0
ifindex 12
wdev 0x5
addr b0:4e:26:e0:47:30
ssid Test
type AP
wiphy 0
channel 7 (2442 MHz), width: 40 MHz, center1: 2432 MHz
txpower 20.00 dBm
$ iw phy0 info
Wiphy phy0
max # scan SSIDs: 4
max scan IEs length: 2257 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 1 (up to 450m)
Device supports AP-side u-APSD.
Device supports T-DLS.
Available Antennas: TX 0x7 RX 0x7
Configured Antennas: TX 0x7 RX 0x7
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* mesh point
* P2P-client
* P2P-GO
* outside context of a BSS
Band 1:
Capabilities: 0x11ee
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: 0-23
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] (20.0 dBm) (no IR)
valid interface combinations:
* #{ managed } <= 2048, #{ AP, mesh point } <= 8, #{ P2P-client, P2P-GO } <= 1, #{ IBSS } <= 1,
total <= 2048, #channels <= 1, STA/AP BI must match, radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz }
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
I hope that someone can help to figure out this strange behavior.