over LAN I give 850 Mb/s. but WiFi is bad.
With what settings ? I'm not able to reach 500 Mbit with Ethernet on OpenWrt testing with operf3
root@OpenWrt:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201 (test #1)
-----------------------------------------------------------
Accepted connection from 192.168.1.104, port 59347
[ 5] local 192.168.1.1 port 5201 connected to 192.168.1.104 port 59349
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 49.9 MBytes 417 Mbits/sec
[ 5] 1.00-2.00 sec 58.6 MBytes 492 Mbits/sec
[ 5] 2.00-3.00 sec 59.2 MBytes 497 Mbits/sec
[ 5] 3.00-4.00 sec 57.8 MBytes 485 Mbits/sec
[ 5] 4.00-5.00 sec 55.2 MBytes 464 Mbits/sec
[ 5] 5.00-6.00 sec 54.8 MBytes 459 Mbits/sec
[ 5] 6.00-7.00 sec 54.3 MBytes 456 Mbits/sec
[ 5] 7.00-8.00 sec 58.1 MBytes 487 Mbits/sec
[ 5] 8.00-9.01 sec 57.8 MBytes 482 Mbits/sec
[ 5] 9.01-10.00 sec 53.8 MBytes 456 Mbits/sec
[ 5] 10.00-10.01 sec 384 KBytes 246 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.01 sec 560 MBytes 469 Mbits/sec receiver
ok, when i change for the 160 Mhz i have this
Mon Aug 29 21:23:17 2022 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy1.conf (phy wlan1) --> new PHY
Mon Aug 29 21:23:17 2022 daemon.notice hostapd: wlan1: interface state UNINITIALIZED->COUNTRY_UPDATE
Mon Aug 29 21:23:17 2022 daemon.notice hostapd: wlan1: interface state COUNTRY_UPDATE->HT_SCAN
Mon Aug 29 21:23:18 2022 daemon.notice hostapd: wlan1: interface state HT_SCAN->DFS
Mon Aug 29 21:23:18 2022 daemon.notice hostapd: wlan1: DFS-CAC-START freq=5500 chan=100 sec_chan=1, width=2, seg0=114, seg1=0, cac_time=60s
Mon Aug 29 21:23:18 2022 daemon.err hostapd: nl80211: kernel reports: (extension) channel is disabled
Mon Aug 29 21:23:18 2022 daemon.err hostapd: DFS start_dfs_cac() failed, -1
Mon Aug 29 21:23:18 2022 daemon.err hostapd: Interface initialization failed
Mon Aug 29 21:23:18 2022 daemon.notice hostapd: wlan1: interface state DFS->DISABLED
Mon Aug 29 21:23:18 2022 daemon.notice hostapd: wlan1: AP-DISABLED
Mon Aug 29 21:23:18 2022 daemon.notice netifd: Wireless device 'radio1' is now up
so it's an error with dfs
for info, when i change for 80 Mhz i have this
Mon Aug 29 21:28:10 2022 daemon.notice netifd: Wireless device 'radio1' is now down
Mon Aug 29 21:28:11 2022 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy1.conf (phy wlan1) --> new PHY
Mon Aug 29 21:28:11 2022 daemon.notice hostapd: wlan1: interface state UNINITIALIZED->COUNTRY_UPDATE
Mon Aug 29 21:28:11 2022 daemon.notice hostapd: wlan1: interface state COUNTRY_UPDATE->HT_SCAN
Mon Aug 29 21:28:11 2022 daemon.notice hostapd: wlan1: interface state HT_SCAN->DFS
Mon Aug 29 21:28:11 2022 daemon.notice hostapd: wlan1: DFS-CAC-START freq=5500 chan=100 sec_chan=1, width=1, seg0=106, seg1=0, cac_time=60s
Mon Aug 29 21:28:12 2022 daemon.notice netifd: Wireless device 'radio1' is now up
and it work
MT7915E should suport 160 Mhz
iw phy1 info | grep 80
Supported Channel Width: neither 160 nor 80+80
short GI (80 MHz)
HE MAC Capabilities (0x08011a000040):
HE40/HE80/5GHz
HE160/HE80+80/5GHz
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Beamformee STS <= 80Mhz: 3
Beamformee STS > 80Mhz: 3
20MHz in 160/80+80MHz HE PPDU
80MHz in 160/80+80MHz HE PPDU
HE RX MCS and NSS set <= 80 MHz
HE TX MCS and NSS set <= 80 MHz
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
HE PHY Capabilities: (0x1c200e926f09af08000c00):
HE40/HE80/5GHz
HE160/HE80+80/5GHz
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Beamformee STS <= 80Mhz: 3
Beamformee STS > 80Mhz: 3
Sounding Dimensions <= 80Mhz: 1
Sounding Dimensions > 80Mhz: 1
HE RX MCS and NSS set <= 80 MHz
HE TX MCS and NSS set <= 80 MHz
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
HE PHY Capabilities: (0x1c200c0000000000008000):
HE40/HE80/5GHz
HE160/HE80+80/5GHz
STBC Tx <= 80MHz
STBC Rx <= 80MHz
HE RX MCS and NSS set <= 80 MHz
HE TX MCS and NSS set <= 80 MHz
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
* 5180 MHz [36] (23.0 dBm)
* 5280 MHz [56] (20.0 dBm) (radar detection)
* 5580 MHz [116] (26.0 dBm) (radar detection)
* 5680 MHz [136] (26.0 dBm) (radar detection)
* 5805 MHz [161] (13.0 dBm)
total <= 19, #channels <= 1, STA/AP BI must match, radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz, 80 MHz, 80+80 MHz, 160 MHz }
* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
If you run iperf locally on the router itself you are likely maxing out the cpu during testing. What do the results look like when you run iperf between 2 machines on your network?
1 Like
via lan port my speed is 900 Mbps download and 600 Mbps upload , so it is very good via lan port. my problem is with wi-fi....
Hi,
@marceli : never run iperf3 on the router itself, you can do that if your router is a a powerful x86_64
but on all socs the result of doing this is something like:
[SUM] 0.00-10.00 sec 621 MBytes 521 Mbits/sec sender
[SUM] 0.00-10.00 sec 613 MBytes 514 Mbits/sec receiver
because:
For information:
There is a new patch on the snapshots about routing perf between lan and wan:
To summerize:
before: slow routing lan <-> wan but fast switching (use case: dumb AP with wan included in br-lan)
now: near gb routing lan <-> wan but switching between lan and wan is now slower
So take care on how you plug your ethernet wires
As a exemple, with today's snapshot and switching only (br-lan including the 4 ifaces and no wan+wan6):
You need to reboot the router after each fw conf change, I don't know why but it seams that FW changes now need a reboot to work
- uplink on WAN and no offloading (with or sw offloading, no hw offloading):
iperf3.exe -c 192.168.0.2 -bidir -P8
[SUM] 0.00-10.00 sec 1.09 GBytes 940 Mbits/sec sender
[SUM] 0.00-10.00 sec 1.09 GBytes 940 Mbits/sec receiver
- uplink on WAN with hw offloading, lower perf:
iperf3.exe -c 192.168.0.2 -bidir -P8
[SUM] 0.00-10.00 sec 1.04 GBytes 896 Mbits/sec sender
[SUM] 0.00-10.00 sec 1.04 GBytes 895 Mbits/sec receiver
Now in router mode doing nat (I made a reset and let all the defaults):
- uplink on WAN and no offloading (with or sw offloading, no hw offloading):
iperf3.exe -c 192.168.0.2 -bidir -P8
[SUM] 0.00-10.00 sec 1.08 GBytes 925 Mbits/sec sender
[SUM] 0.00-10.00 sec 1.08 GBytes 925 Mbits/sec receiver
To be honest, that is a little better (933 Mbits/sec) with SW offloading
- uplink on WAN with hw offloading, better perf than before:
iperf3.exe -c 192.168.0.2 -bidir -P8
[SUM] 0.00-10.00 sec 1.09 GBytes 939 Mbits/sec sender
[SUM] 0.00-10.00 sec 1.09 GBytes 938 Mbits/sec receiver
Results are better than with my other MT7621 device (Cudy WR1300) as you can read here:
Perhaps they are working on this patch (I have a today's snapshot on the Asus), perhaps the ax53u is a little bit more powerfull (and as I have Wifi off for this test there is more CPU available for routing)
@cdumdum or @c_dum
For the Wifi speed, perhaps your USB Wifi dongle is not capable of more ?
Amazon reviews off your dongle are not very positive
Perhaps you didn't define the country code in the Wifi configuration page ? you can configure more TX power fo channels > 100
Today's snapshot seams worst that yesterday snapshot (CH36 @23dBm -> 200mW):
Right now I only have (it was better with yesterday snapshot):
iperf3.exe -c 192.168.1.1 -P8
[SUM] 0.00-10.00 sec 574 MBytes 481 Mbits/sec sender
[SUM] 0.00-10.00 sec 564 MBytes 473 Mbits/sec receiver
iperf3.exe -c 192.168.1.1 -P8 -R
[SUM] 0.00-10.00 sec 412 MBytes 345 Mbits/sec 0 sender
[SUM] 0.00-10.00 sec 412 MBytes 345 Mbits/sec receiver
I can do 630/400 on CH100 and 400mW)
Today (with one core at 100%):
yesterday's snapshot (not in the screenshot, but with load well balanced between cores):
Perhaps devs have made some changes since 2 days, but I'm not smart enough to dig in the OpenWRT repos to try to find what they changes (but yeasterday snapshot was really better with load correctly balanced on all cores ... and not today)
I reinstalled yesterday's snapshot
from my laptop to a wired station (upload) on cannel 149 and 29dBm
On the reverse side (download) :
I think we simply have to be patient ... that is a snapshot
I'm able to change the power on 5G wifi if setting location to China but then if I set 199mW f.e. I'm getting only 54Mbit connection 
On wifi 2,4 I'm not able to select more than 100mW.
Try with BE or AU (but then restore your local country code!)
Check your country's regulations to select the best channel/power/DFS/radar combo
My laptop has an Intel Wi-Fi 6E AX210 160MHz card...maybe that makes a big difference
Fast Wifi also needs a fast CPU (lots of IRQ), on older hardware you'll be fine with an N or AC card, but upgrading to AX won't make any difference. In fact it will be worse (I've tried with older dual-core laptops, which work well, but upgrading them with a fast AX card only had bad effects, too much CPU used for nothing better in terms of Wifi speed... but with bad effect on general use (because there is no CPU left for other programs)
Sometimes you may also have an underlying problem, such as a bad network cable between your LAN and your router.
So starts with the basics, do an iperf3 test between 2 computers connected to the router switch to ensure that the "wired" part of your network is capable of 920~950 Mbps.
Then, if it works, do some Wifi speed test lan to lan (or lan to wlan if you prefer theses words) and monitor your computers'CPUs
Out of subject, just for fun. I just received and unboxed a Cudy X6 (same hardware that RT-AX53U).
With stock config (not even connected yet on the UI) I get that:
Strange thing is it works relatively well on my old Xiaomi Mi Router 3G running padavan. Wifi connection speed is higher but iperf3 results are similar. Unfortunately my other laptop is company laptop and somehow iperf3 is blocked. My wife's laptop doesn't have network socket, just wifi (new Huawei laptop and wifi connection speed is worse than on my 3-years old Lenovo)
Asus published the source for the router OEM fw, has anyone looked into that? maybe there's some code that would make the driver work better?
Source code for mtk drivers was never released by Asus in any GPLs.
1 Like
But it's not much faster on the OEM fw. For me it's indeed faster over Ethernet if I disable hw NAT but wifi performance is still terrible.
Sorry but I don't have special Wifi perf problem with mine (but I only own it since 2 days) depending on the snapshot image I use
last test with its little brother (Cudy X6 at half the price, same SOC but only 32MB of flash):
Download
Upload
For upload, I often see this speed lost, I think it is because of thermal throttling on the AX210 card in my laptop
For information, whatever I do, I have sometime better speed during a file transfert than with iperf3, by a good margin. iperf is not the only tool to use
What is your laptop HW configuration ?
do you use the ax53u in router mode or in AP mode ? ... try in AP only mode if you can, anything that uses CPU on the router will kill the Wifi perf, MT7621 is a very good soc, but not powerfull enough to do routing + wifi + SQM + adblock + ....
In my use case (dump AP + managed switch using vlans) it is the perfect soc today.
My router is a mini-pc (x86_64, celeron, 4 nic) also running OpenWRT doing the hard work
can you use an usb-to-rj45 dongle on your wife laptop ?
Did you install anything on the router like SQM or adblock or ? (eg: I tried DAWN on all my APs to help wifi roaming... I removed it quickly, wifi speed was horrible)
WiFi speed is terrible on RC6. I haven't tested SnapShot, but I guess it will be the same.
There is a mistake somewhere. I tried different settings and nothing works.
In my Lenovo I have Intel AC 3165 wifi and Realtek PCIe GbE.
Over LAN I can get 800-900 Mbps. But wifi connects only at 433/433 in 5G. Now I realized that's limitation of the wifi card in my laptop 
In the Dell (company laptop) I have Intel wifi6 AX201 and it connects at 1201/721.
One thing I have noticed that Amazon FireTV Stick which is 2m away but across a wall now is not able to connect over 5G wifi and on old router it was connecting without problem.
So I will probably just return this Asus and keep my old Xiaomi as it won't be any faster in my case.
Hi. How to go back to oem firmware. Asus restoration don't work
Hi @Michaelsz
Did you try to install the Asus firmware from openwrt (System -> Backup / Flash Firmware)
Yes, I tried. The update process seems to be going through, but after rebooting, I still have open wrt.