#17836: WDR3600 packet loss on devices connected via wifi
--------------------------+----------------------------------
Reporter: osamajvd@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: base system | Version: Trunk
Resolution: | Keywords: WDR3600, packet loss
--------------------------+----------------------------------
Comment (by anonymous):
Ok same result. Running on OpenWrt r42464 I am still getting packet loss.
Installed it, ran ping google.com -t and I get a 3% packet loss almost
everytime I run it. I usually let it go for a while. This time it sent
133, 4 of which were lost.
Here is same debug output but if I connect to the router as soon as it
starts I only get 20Hz. I forgot about this so I have 2 outputs. One in
20Hz and one in 40Hz. If this doesn't make a difference please let me know
so I can remove one of them.
{{{
root@OpenWrt:~# iw dev wlan0 station dump
Station 70:1a:04:c9:03:a2 (on wlan0)
inactive time: 10 ms
rx bytes: 545735
rx packets: 3261
tx bytes: 1691541
tx packets: 3314
tx retries: 246
tx failed: 5
signal: -38 [-39, -47] dBm
signal avg: -38 [-39, -47] dBm
tx bitrate: 130.0 MBit/s MCS 15
rx bitrate: 130.0 MBit/s MCS 15
authorized: yes
authenticated: yes
preamble: short
WMM/WME: yes
MFP: no
TDLS peer: no
root@OpenWrt:~# cat
/sys/kernel/debug/ieee80211/phy0/netdev:wlan0/stations/70:1a:04:c9:03:a2/rc_stats
type rate throughput ewma prob this prob retry this
succ/attempt success attempts
CCK/LP 1.0M 0.6 73.7 9.0 0
0( 0) 55 116
CCK/SP 2.0M 1.5 100.0 100.0 0
0( 0) 1 1
CCK/SP 5.5M 3.8 100.0 100.0 0
0( 0) 1 1
CCK/SP 11.0M 6.1 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS0 5.6 100.0 100.0 1
0( 0) 2 2
HT20/LGI MCS1 10.5 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS2 14.8 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS3 18.6 100.0 100.0 0
0( 0) 2 2
HT20/LGI MCS4 25.1 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS5 30.3 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS6 32.5 100.0 100.0 0
0( 0) 1 1
HT20/LGI P MCS7 35.0 100.0 100.0 5
0( 0) 44 44
HT20/LGI MCS8 10.5 100.0 100.0 4
0( 0) 1 1
HT20/LGI MCS9 18.6 100.0 100.0 5
0( 0) 1 1
HT20/LGI MCS10 25.1 100.0 100.0 5
0( 0) 1 1
HT20/LGI MCS11 30.3 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS12 38.7 96.3 100.0 6
0( 0) 48 52
HT20/LGI t MCS13 43.7 89.4 100.0 6
0( 0) 156 168
HT20/LGI MCS14 41.9 80.6 33.3 6
0( 0) 519 573
HT20/LGI T MCS15 48.8 97.0 100.0 6
1( 1) 2751 2927
Total packet count:: ideal 3483 lookaround 70
Average A-MPDU length: 1.0
}}}
{{{
root@OpenWrt:~# iw dev wlan0 station dump
Station 70:1a:04:c9:03:a2 (on wlan0)
inactive time: 10 ms
rx bytes: 333753
rx packets: 1864
tx bytes: 1240107
tx packets: 1931
tx retries: 259
tx failed: 3
signal: -44 [-44, -51] dBm
signal avg: -42 [-42, -50] dBm
tx bitrate: 180.0 MBit/s MCS 12 40MHz short GI
rx bitrate: 300.0 MBit/s MCS 15 40MHz short GI
authorized: yes
authenticated: yes
preamble: short
WMM/WME: yes
MFP: no
TDLS peer: no
root@OpenWrt:~# cat
/sys/kernel/debug/ieee80211/phy0/netdev:wlan0/stations/70:1a:04:c9:03:a2/rc_stats
type rate throughput ewma prob this prob retry this
succ/attempt success attempts
CCK/LP 1.0M 0.7 83.6 100.0 0
0( 0) 23 54
CCK/SP 2.0M 1.5 100.0 100.0 0
0( 0) 1 1
CCK/SP 5.5M 3.8 100.0 100.0 0
0( 0) 1 1
CCK/SP 11.0M 6.1 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS0 5.6 100.0 100.0 3
0( 0) 3 3
HT20/LGI MCS1 10.5 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS2 14.8 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS3 18.6 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS4 25.1 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS5 30.3 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS6 32.5 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS7 35.0 95.1 91.9 5
0( 0) 242 258
HT20/LGI MCS8 10.5 100.0 100.0 4
0( 0) 1 1
HT20/LGI MCS9 18.6 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS10 25.1 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS11 30.3 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS12 38.7 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS13 44.0 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS14 46.8 100.0 100.0 0
0( 0) 1 1
HT20/LGI MCS15 48.8 100.0 100.0 6
0( 0) 67 67
HT40/LGI MCS0 10.8 100.0 100.0 4
0( 0) 1 1
HT40/LGI MCS1 19.3 100.0 100.0 0
0( 0) 1 1
HT40/LGI MCS2 25.7 100.0 100.0 0
0( 0) 1 1
HT40/LGI MCS3 23.6 68.3 100.0 0
0( 0) 4 5
HT40/LGI MCS4 39.3 100.0 100.0 6
0( 0) 1 1
HT40/LGI MCS5 44.8 100.0 100.0 0
0( 0) 1 1
HT40/LGI MCS6 47.7 100.0 100.0 6
0( 0) 1 1
HT40/LGI P MCS7 48.5 87.5 50.0 6
0( 0) 4 5
HT40/LGI MCS8 19.3 100.0 100.0 5
0( 0) 1 1
HT40/LGI MCS9 31.1 100.0 100.0 0
0( 0) 1 1
HT40/LGI MCS10 39.3 95.4 100.0 6
0( 0) 69 77
HT40/LGI MCS11 44.8 95.4 100.0 6
0( 0) 118 125
HT40/LGI MCS12 48.2 81.2 100.0 6
0( 0) 113 119
HT40/LGI t MCS13 52.3 81.8 100.0 6
0( 0) 121 143
HT40/LGI MCS14 47.1 69.9 100.0 6
0( 0) 190 215
HT40/LGI MCS15 30.3 43.8 0.0 6
0( 0) 112 145
HT40/SGI MCS0 11.9 100.0 100.0 0
0( 0) 1 1
HT40/SGI MCS1 20.9 100.0 100.0 0
0( 0) 1 1
HT40/SGI MCS2 20.9 68.3 100.0 0
0( 0) 4 5
HT40/SGI MCS3 33.1 100.0 100.0 0
0( 0) 1 1
HT40/SGI MCS4 41.5 100.0 100.0 6
0( 0) 1 1
HT40/SGI MCS5 46.8 100.0 100.0 6
0( 0) 1 1
HT40/SGI MCS6 47.4 85.9 100.0 6
0( 0) 13 16
HT40/SGI MCS7 46.0 80.2 25.0 6
0( 0) 54 62
HT40/SGI MCS8 20.9 100.0 100.0 5
0( 0) 2 2
HT40/SGI MCS9 33.1 100.0 100.0 0
0( 0) 1 1
HT40/SGI MCS10 41.5 97.2 89.1 6
0( 0) 42 47
HT40/SGI MCS11 46.8 100.0 100.0 0
0( 0) 1 1
HT40/SGI T MCS12 55.2 98.8 100.0 6
1( 1) 376 401
HT40/SGI MCS13 52.0 79.2 100.0 6
0( 0) 20 28
HT40/SGI MCS14 46.2 67.1 100.0 6
0( 0) 195 249
HT40/SGI MCS15 32.0 45.2 0.0 6
0( 0) 167 199
Total packet count:: ideal 1863 lookaround 88
Average A-MPDU length: 1.0
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/17836#comment:2>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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