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Meraki MR12 firmware 21.02.1(3) 22.03.0-rc6 Low speed Upload WIFI
Hi I've installed a new firmware to Meraki MR12 (21.02.3), and the problem is when I test a wi-fi speed I get about 130-140 Mb/s DW, but only 2-3 Mb/s UP. So I take a UART and flashed a 21.02.1, but the problem is the same. Then I flashed 19.07.8 and everything is working fine. The DW/UP speed are mostly the same 180/180 Mb/s.
I've upgradded to newest version OpenWrt 22.03.0-rc6 r19590-042d558536 the problem is stiil present. DW speed 150-160 Mb/s UP max 3 Mb/s.
Please show /sys/kernel/debug/ieee80211/phy0/netdev:*/stations/*/rc_stats. Perhaps it's a calibration issue.
Hi Martin. Did You want that ?
` root@OpenWrt:~# cat /sys/kernel/debug/ieee80211/phy0/netdev:/stations//rc_stats
best ____________rate__________ ____statistics___ _____last____ ______sum-of________
mode guard # rate [name idx airtime max_tp] [avg(tp) avg(prob)] [retry|suc|att] [#success | #attempts] HT20 LGI 1 S MCS0 0 1477 5.6 0.0 0.0 1 0 0 0 0 HT20 LGI 1 MCS1 1 738 10.6 0.0 0.0 0 0 0 0 0 HT20 LGI 1 MCS2 2 492 14.9 0.0 0.0 0 0 0 0 0 HT20 LGI 1 MCS3 3 369 18.8 0.0 0.0 0 0 0 0 0 HT20 LGI 1 MCS4 4 246 25.4 0.0 0.0 0 0 0 0 0 HT20 LGI 1 MCS5 5 185 30.7 0.0 0.0 0 0 0 0 0 HT20 LGI 1 MCS6 6 164 33.0 0.0 0.0 0 0 0 0 0 HT20 LGI 1 MCS7 7 148 35.1 0.0 0.0 0 0 0 0 0 HT20 LGI 2 MCS8 16 738 10.6 10.6 100.0 4 0 0 1 1 HT20 LGI 2 MCS9 17 369 18.8 18.8 100.0 0 0 0 0 0 HT20 LGI 2 MCS10 18 246 25.4 25.4 100.0 0 0 0 0 0 HT20 LGI 2 MCS11 19 185 30.7 30.7 100.0 0 0 0 1 1 HT20 LGI 2 MCS12 20 123 38.9 38.9 100.0 0 0 0 0 0 HT20 LGI 2 MCS13 21 92 44.8 44.8 100.0 6 0 0 1 1 HT20 LGI 2 MCS14 22 82 47.3 47.3 100.0 6 0 0 1 1 HT20 LGI 2 MCS15 23 74 49.4 49.4 100.0 0 0 0 1 1 HT40 LGI 1 MCS0 128 711 10.9 10.9 100.0 4 0 0 1 1 HT40 LGI 1 MCS1 129 356 19.4 19.4 100.0 5 0 0 0 0 HT40 LGI 1 MCS2 130 237 26.0 26.0 100.0 5 0 0 2 2 HT40 LGI 1 MCS3 131 178 31.4 0.0 0.0 0 0 0 0 0 HT40 LGI 1 MCS4 132 119 39.6 0.0 0.0 0 0 0 0 0 HT40 LGI 1 MCS5 133 89 45.6 0.0 0.0 0 0 0 0 0 HT40 LGI 1 MCS6 134 79 48.0 0.0 0.0 0 0 0 0 0 HT40 LGI 1 MCS7 135 71 50.2 0.0 0.0 0 0 0 0 0 HT40 LGI 2 MCS8 144 356 19.4 19.4 100.0 0 0 0 0 0 HT40 LGI 2 MCS9 145 178 31.4 31.4 100.0 5 0 0 0 0 HT40 LGI 2 MCS10 146 119 39.6 39.6 100.0 6 0 0 1 1 HT40 LGI 2 MCS11 147 89 45.6 45.6 100.0 6 0 0 4 4 HT40 LGI 2 MCS12 148 59 53.7 53.7 100.0 6 0 0 2 2 HT40 LGI 2 P MCS13 149 44 59.0 59.0 100.0 6 0 0 3 3 HT40 LGI 2 D MCS14 150 40 60.9 60.9 100.0 6 0 0 2 2 HT40 LGI 2 B MCS15 151 36 62.6 62.6 100.0 6 0 0 1 1 HT40 SGI 1 MCS0 192 640 12.0 12.0 100.0 0 0 0 0 0 HT40 SGI 1 MCS1 193 320 21.0 21.0 100.0 0 0 0 0 0 HT40 SGI 1 MCS2 194 214 27.9 27.9 100.0 0 0 0 0 0 HT40 SGI 1 MCS3 195 160 33.5 33.5 100.0 5 0 0 1 1 HT40 SGI 1 MCS4 196 107 41.8 41.8 100.0 6 0 0 1 1 HT40 SGI 1 MCS5 197 80 47.8 0.0 0.0 0 0 0 0 0 HT40 SGI 1 MCS6 198 71 50.1 0.0 0.0 0 0 0 0 0 HT40 SGI 1 MCS7 199 64 52.2 0.0 0.0 0 0 0 0 0 HT40 SGI 2 MCS8 208 320 21.0 21.0 100.0 0 0 0 0 0 HT40 SGI 2 MCS9 209 160 33.5 33.5 100.0 0 0 0 0 0 HT40 SGI 2 MCS10 210 107 41.8 41.8 100.0 6 0 0 1 1 HT40 SGI 2 MCS11 211 80 47.8 47.8 100.0 6 0 0 6 6 HT40 SGI 2 MCS12 212 54 55.6 55.6 100.0 6 0 0 2 2 HT40 SGI 2 MCS13 213 40 60.7 60.7 100.0 6 0 0 4 4 HT40 SGI 2 C MCS14 214 36 62.5 62.5 100.0 6 0 0 4 4 HT40 SGI 2 A MCS15 215 32 64.1 64.1 100.0 6 8 8 896 896
Total packet count:: ideal 941 lookaround 25 Average # of aggregated frames per A-MPDU: 1.0 root@OpenWrt:~# Something is wrong with formating the text. When I editing the post the format of the text is correct, but when I save the posrt everything is wrong ;-(
That's all good. I realized after I posted that your problem is Client -> MR12, not MR12 -> client. The rate control table I asked for shows MR12 -> client.
Can you run iperf3 from host A, through MR12 as host B, to a WiFi client host C? And do the same in reverse? I'd like to know whether the MR12 is being slowed down by CPU load.
This is oddly similar to https://forum.openwrt.org/t/limited-speed-at-openwrt-access-point/118750/23. Though the two devices use different chips (AR928X vs AR922X).
That's all good. I realized after I posted that your problem is Client -> MR12, not MR12 -> client. The rate control table I asked for shows MR12 -> client.
Can you run
iperf3from host A, through MR12 as host B, to a WiFi client host C? And do the same in reverse? I'd like to know whether the MR12 is being slowed down by CPU load.
All of the test upper post are done exacly what you want (if I understand You correct) On my server HP t620 I have a docker with LibreSpeed, the MR12 is my wifi AP, my laptop is downloading from t620 with 147MB/s but uploading - 0.43Mb. This problem is only with the firmware 2x.x.x, but on 19 the speed are equall 180Mb/s.
I'm really interested in this bit:
I'd like to know whether the MR12 is being slowed down by CPU load.
Honestly, the fastest way to get a response would be to provide a configuration file backup of an MR12 which has this behavior. Feel free to manually scrub the configuration before you do so. I struggle to believe there's an actual regression here; I do know the MR12 was ported to ath79 from ar71xx, so in my view the default conf difference would be a switch of the ports.
Hi, Martin
I can send to You the backup of configuration. After flashed the new firmwarem I've change the IP, and config of Wi-fi (Mode N, Width 40 MHz, Force 40MHz, password : WPA2-PSK, Force AES). On Startup I've disabled Firewall, dnsmasq, odhcpd (Meraki working as Dumb AP) The new option in new (21.x) firmware is the switch option. The MR12 have second LAN port.
I think thats all.
The backup is bellow. backup-OpenWrt-2022-08-27.tar.gz
/etc/config/wireless:
- You do not need
hwmodeas of 21.02.3.
I was going to restore this to an MR12, but I just took the one I used to port out of its box and discovered it is dead.
Hmm I''ve always setup my AP via LUCI. But strange if I understand correct hwmode set my AP to correct version b,g,n etc. So if in /etc/config/wireless I can see hwmode '11g', that means AP is setting to "b,g,n" I'm asking because in LUCI I've setting up this to N. My laptops and mobile (smartfons) used N or higher standards, so I decided to rezignate to another old versions.
"Specifies the hardware mode, possible values are 11b for 2.4 GHz (used for legacy 802.11b only), 11g for 2.4 GHz (used for 802.11b, 802.11g and 802.11n) and 11a for 5 GHz (used for 802.11a, 802.11n and 802.11ac). Note that 11ng, 11na, 11n and 11ac are invalid options, this setting should largely be seen as controlling the frequency band. (DEPRECATED since 21.02.2, replaced with band)"
The print screen bellow.
Hopping in, this issue is reproducible with Powerbeam M5 400 too, both in AP or CPE mode, this seems like a regression in ath9k itself in OpenWRT 2x.x as upload speed is OK with OpenWRT 19.x
A few minutes ago, I've upgraded to the new version 22.03.0, after quick tests, the problem is still present.
Another problem is with the Samsung a53 5G. I discovered it yesterday. I've bought a new one (from the shop). When I connected it to the wifi network. The power of wifi is weak. Sometimes is full but a few swcond is very low. So the speed is very slowly. I decided to test Samsung with the second device Meraki MR16 - the same issue. So i flashed the old version 21.02.03 to the Meraki MR16 - the same issue.
But on TL-WR1043ND with OpenWRT 22.03 everything is fine. The speed connection in Samsung is 72Mbps, on Meraki's 65 Mbps, The Network Cell Info shows the -88dBm on Merakis - the distance between AP and the a53 is about 2-3m. On Motorola g7 Power is showing -34dBm - the same distance. Anybody any idee??