#17836 closed defect (worksforme)
WDR3600 packet loss on devices connected via wifi
| Reported by: | osamajvd@… | Owned by: | developers |
|---|---|---|---|
| Priority: | normal | Milestone: | |
| Component: | base system | Version: | Trunk |
| Keywords: | WDR3600, packet loss | Cc: |
Description
Hi all.
I am currently have OpenWrt Chaos Calmer r42455 running on my TP-Link TL-WDR3600. Every device on the network that is connected to the router via wifi is experiencing ~3% packet loss.
This also happens on Breaking Barrier RC1 and RC3.
I saw a similar issue and here is what was requested on that ticket.
root@OpenWrt:~# iw dev wlan0 station dump
Station 70:1a:04:c9:03:a2 (on wlan0)
inactive time: 10 ms
rx bytes: 15698864
rx packets: 140527
tx bytes: 808476172
tx packets: 542183
tx retries: 20880
tx failed: 14
signal: -41 [-41, -54] dBm
signal avg: -39 [-40, -53] dBm
tx bitrate: 162.0 MBit/s MCS 12 40MHz
rx bitrate: 270.0 MBit/s MCS 15 40MHz
authorized: yes
authenticated: yes
preamble: short
WMM/WME: yes
MFP: no
TDLS peer: no
Station 98:0c:82:1e:7c:9a (on wlan0)
inactive time: 22640 ms
rx bytes: 3443798
rx packets: 31212
tx bytes: 17428880
tx packets: 17955
tx retries: 3285
tx failed: 30
signal: -54 [-60, -55] dBm
signal avg: -56 [-61, -57] dBm
tx bitrate: 58.5 MBit/s MCS 6
rx bitrate: 65.0 MBit/s MCS 7
authorized: yes
authenticated: yes
preamble: short
WMM/WME: yes
MFP: no
TDLS peer: no
Station cc:fa:00:f1:fb:e8 (on wlan0)
inactive time: 6920 ms
rx bytes: 16406740
rx packets: 85307
tx bytes: 139524473
tx packets: 114320
tx retries: 7466
tx failed: 1
signal: -61 [-63, -59] dBm
signal avg: -56 [-63, -57] dBm
tx bitrate: 65.0 MBit/s MCS 7
rx bitrate: 1.0 MBit/s
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 79.7 100.0 0 0( 0) 211 395 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) 5 5 HT20/LGI MCS1 10.5 95.2 100.0 0 0( 0) 15 19 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 5 0( 0) 11 11 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 35.0 100.0 100.0 0 0( 0) 1 1 HT20/LGI MCS8 10.5 100.0 100.0 0 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 95.7 100.0 0 0( 0) 11 12 HT20/LGI MCS13 44.0 95.2 100.0 6 0( 0) 10 65 HT20/LGI MCS14 46.8 95.4 100.0 0 0( 0) 11 14 HT20/LGI MCS15 48.8 95.6 100.0 6 0( 0) 34 57 HT40/LGI MCS0 10.8 100.0 100.0 0 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 31.1 100.0 100.0 0 0( 0) 1 1 HT40/LGI MCS4 39.3 100.0 100.0 0 0( 0) 1 1 HT40/LGI MCS5 44.8 96.1 100.0 6 0( 0) 27 33 HT40/LGI MCS6 47.7 96.1 100.0 6 0( 0) 128 142 HT40/LGI MCS7 47.1 85.0 100.0 6 0( 0) 964 1015 HT40/LGI MCS8 19.3 100.0 100.0 0 0( 0) 1 1 HT40/LGI MCS9 31.1 100.0 100.0 0 0( 0) 1 1 HT40/LGI MCS10 39.3 100.0 100.0 0 0( 0) 1 1 HT40/LGI MCS11 44.8 100.0 100.0 6 0( 0) 2 2 HT40/LGI T MCS12 53.5 98.3 100.0 6 1( 1) 6529 7549 HT40/LGI MCS13 49.5 77.4 50.0 6 0( 0) 39994 46520 HT40/LGI MCS14 49.7 73.7 100.0 6 0( 0) 15071 19497 HT40/LGI MCS15 9.7 14.0 0.0 5 0( 0) 8498 13400 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 27.6 100.0 100.0 0 0( 0) 1 1 HT40/SGI MCS3 33.1 100.0 100.0 0 0( 0) 1 1 HT40/SGI MCS4 41.5 100.0 100.0 0 0( 0) 1 1 HT40/SGI MCS5 46.8 97.1 100.0 6 0( 0) 52 54 HT40/SGI MCS6 49.7 96.2 100.0 6 0( 0) 183 202 HT40/SGI P MCS7 51.7 98.4 100.0 6 0( 0) 12775 13622 HT40/SGI MCS8 20.9 100.0 100.0 0 0( 0) 1 1 HT40/SGI MCS9 33.1 100.0 100.0 0 0( 0) 1 1 HT40/SGI MCS10 41.5 100.0 100.0 0 0( 0) 1 1 HT40/SGI MCS11 46.8 100.0 100.0 0 0( 0) 1 1 HT40/SGI MCS12 48.2 78.7 66.6 6 0( 0) 71301 77517 HT40/SGI t MCS13 50.8 77.4 100.0 6 0( 0) 276465 314885 HT40/SGI MCS14 51.4 74.5 66.6 6 0( 0) 100386 112993 HT40/SGI MCS15 13.2 18.7 0.0 6 0( 0) 10304 16114 Total packet count:: ideal 532548 lookaround 10370 Average A-MPDU length: 1.0
Attachments (0)
Change History (9)
comment:1 follow-up: ↓ 4 Changed 3 years ago by bittorf@…
comment:2 Changed 3 years ago 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
comment:3 Changed 3 years ago by bittorf@…
please check where the packet-loss occurs:
1) ping the router itself from the client and 2) ping the client from the router 3) ping the internet from the router 4) ping the router from the internet
comment:4 in reply to: ↑ 1 Changed 3 years ago by anonymous
Ok I ran the first 3 tests at the exact same time. I wasn't sure how to go about pinging my router from the internet. My router connects through a modem (I have extensively tested to make sure it's not the modem. I even had my ISP ping my modem 500 times and the result was 0 packet loss) so I forwarded port 80 on my modem to the router and ran multiple ping tests. All of them came back with 100% packet loss. I was however, able to access Luci using my public IP. So I had a friend ping me using paping and he saw 0 packet loss.
Ping statistics for 192.168.1.2:
Packets: Sent = 409, Received = 409, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 61ms, Average = 2ms
Ping client from router:
--- 192.168.1.234 ping statistics --- 417 packets transmitted, 413 packets received, 0% packet loss round-trip min/avg/max = 0.970/3.354/85.328 ms
Ping internet from client:
Ping statistics for 24.156.131.20:
Packets: Sent = 350, Received = 338, Lost = 12 (3% loss),
Approximate round trip times in milli-seconds:
Minimum = 12ms, Maximum = 429ms, Average = 27ms
Ping internet from router:
--- google.com ping statistics --- 405 packets transmitted, 405 packets received, 0% packet loss round-trip min/avg/max = 11.487/24.501/156.704 ms
comment:5 Changed 3 years ago by anonymous
1 thing I should add..
Ping internet from client connected via Ethernet:
Ping statistics for 66.185.84.182:
Packets: Sent = 215, Received = 215, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 12ms, Maximum = 183ms, Average = 26ms
comment:6 Changed 3 years ago by anonymous
Ok I went out and got a replacement router and the packet loss is all gone. It seems to have been a hardware issue and not software.
comment:7 Changed 3 years ago by nbd
- Resolution set to worksforme
- Status changed from new to closed
comment:8 Changed 2 years ago by atlasznak@…
I bought several TP-link devices in the past years (different types, including 1043ND and 3600) for their good price and functionalities.
Unfortunately they seem to die after 1-2 years. It always starts with sporadic packet drops which are becoming more and more disturbing. Reboot helps for a while. Than I set-up regular reboots at night and in the afternoon to woraround the problem. Afther some time the router's wifi interface becomes completely unreliable. It still functions perfectly as a gigabit router or switch just the wifi is useless. I will need to find a good way to add an external wifi with high-gain antennas.
I will consider if I should ever buy from this company again. (Just to compare: I have a 10 years old D-Link still working fine..)
comment:9 Changed 2 years ago by atlasznak@…
I bought several TP-link devices in the past years (different types, including 1043ND and 3600) for their good price and functionalities.
Unfortunately they seem to die after 1-2 years. It always starts with sporadic packet drops which are becoming more and more disturbing. Reboot helps for a while. Than I set-up regular reboots at night and in the afternoon to woraround the problem. Afther some time the router's wifi interface becomes completely unreliable. It still functions perfectly as a gigabit router or switch just the wifi is useless. I will need to find a good way to add an external wifi with high-gain antennas.
I will consider if I should ever buy from this company again. (Just to compare: I have a 10 years old D-Link still working fine..)
please check r42457 or later and report again.