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Opened 3 years ago

Last modified 20 months ago

#19669 reopened defect

TP-1043ND - WiFi slow speed + 40MhZ not working

Reported by: anonymous Owned by: developers
Priority: normal Milestone: Barrier Breaker 14.07
Component: base system Version: Barrier Breaker 14.07
Keywords: 1043ND, wifi, wlan, slow, speed, 1043, 40MhZ, HT40 Cc:

Description

My router TP-Link TL-WR1043ND v1.x running latest available stable, Barrier Breaker 14.07 / LuCI Trunk (0.12+svn-r10530) is having slow wireless LAN (Wifi) speeds at ~14-18Mbps download/upload, since June 2014. Before that date, it had Wifi speeds of 40-50Mbps download.

Also the 40MhZ feature doesnt work, as it is displayed 20MhZ besides all clients in LuCI.


My /etc/conifig/wireless
I always configure WiFi with LuCI's Interface. But I've tried some different settings in the file, reported on the ticket-portal or forum, without success.

config wifi-device 'radio0'
        option type 'mac80211'
        option path 'platform/ath9k'
        option hwmode '11g'
        option channel '6'
        option country 'US'
        option txpower '20'
        option htmode 'HT40'

config wifi-iface
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option ssid 'MySSID'
        option wmm '0'
        option key 'secretkey4wifi'
        option encryption 'psk2+ccmp'

Attachments (0)

Change History (8)

comment:1 Changed 3 years ago by anonymous

option wmm '0'

IIRC, WMM (multi-queue) is mandatory to be able to use HT modes. Do not disable it if you're up for using HT (802.11n) modes.

Then, HT40 could deactivate if AP senses interference on secondary ("above" or "below") channel. You can force HT40 mode, at risk of causing interference. Read that damned manual on wiki how to do it. Doing so would formally violate 802.11n specs and you should make sure you do not cause major interference to others. Choose channels wisely, using least busy channels to minimize interference and get decent throughput.

comment:2 Changed 3 years ago by nbd

  • Resolution set to not_a_bug
  • Status changed from new to closed

comment:3 Changed 3 years ago by anonymous

  • Resolution not_a_bug deleted
  • Status changed from closed to reopened

I already tried WMM enabled - Still it doesnt work. On Wifi Page on LuCI it says for the Wifi: "Bitrate: 100Mbit/s". But i measure only ~10Mbit/s down/up. What's strange is, that the RX Rates are displayed and also measured LOWER than the Upload-Speed. But my Internet-Download-Speed should be over 6x times faster than the upload-speed.

comment:4 Changed 3 years ago by anonymous

Have you tried noscan ? 
Do you read http://wiki.openwrt.org/doc/uci/wireless ? 
What is the distance from yours clients ? 
Have a look at logread and see what it says about wifi initialization ?

comment:5 Changed 3 years ago by anonymous

(1) I tried option noscan '1', but it makes no difference at all

(2) Yes, I've read the Wiki and various forum posts/ tickets

(3) Distance Client-AP: ~2-5 Meters

(4) output of 'logread -f'

## disabling WiFi

Thu May 21 15:06:00 2015 kern.info kernel: [29151.160000] device wlan0 left promiscuous mode
Thu May 21 15:06:00 2015 kern.info kernel: [29151.160000] br-lan: port 2(wlan0) entered disabled state
Thu May 21 15:06:00 2015 daemon.notice netifd: Network device 'wlan0' link is down

## enabling WiFi

Thu May 21 15:06:14 2015 kern.info kernel: [29165.680000] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Thu May 21 15:06:14 2015 kern.info kernel: [29165.690000] device wlan0 entered promiscuous mode
Thu May 21 15:06:15 2015 kern.info kernel: [29166.530000] br-lan: port 2(wlan0) entered forwarding state
Thu May 21 15:06:15 2015 kern.info kernel: [29166.540000] br-lan: port 2(wlan0) entered forwarding state
Thu May 21 15:06:15 2015 kern.info kernel: [29166.540000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Thu May 21 15:06:15 2015 daemon.notice netifd: Network device 'wlan0' link is up
Thu May 21 15:06:17 2015 kern.info kernel: [29168.540000] br-lan: port 2(wlan0) entered forwarding state
Thu May 21 15:06:19 2015 daemon.info hostapd: wlan0: STA xx:xx:xx:xx:xx:xx IEEE 802.11: authenticated
Thu May 21 15:06:19 2015 daemon.info hostapd: wlan0: STA xx:xx:xx:xx:xx:xx IEEE 802.11: associated (aid 1)
Thu May 21 15:06:19 2015 daemon.info hostapd: wlan0: STA xx:xx:xx:xx:xx:xx WPA: pairwise key handshake completed (RSN)
Thu May 21 15:06:19 2015 daemon.info dnsmasq-dhcp[1087]: DHCPREQUEST(br-lan) 192.168.1.191 xx:xx:xx:xx:xx:xx
Thu May 21 15:06:19 2015 daemon.info dnsmasq-dhcp[1087]: DHCPACK(br-lan) 192.168.1.191 xx:xx:xx:xx:xx:xx Client-x-Name
Thu May 21 15:06:21 2015 daemon.info hostapd: wlan0: STA yy:yy:yy:yy:yy:yy IEEE 802.11: authenticated
Thu May 21 15:06:21 2015 daemon.info hostapd: wlan0: STA yy:yy:yy:yy:yy:yy IEEE 802.11: associated (aid 2)
Thu May 21 15:06:21 2015 daemon.info hostapd: wlan0: STA yy:yy:yy:yy:yy:yy WPA: pairwise key handshake completed (RSN)
Thu May 21 15:06:21 2015 daemon.info dnsmasq-dhcp[1087]: DHCPREQUEST(br-lan) 192.168.1.164 yy:yy:yy:yy:yy:yy
Thu May 21 15:06:21 2015 daemon.info dnsmasq-dhcp[1087]: DHCPACK(br-lan) 192.168.1.164 yy:yy:yy:yy:yy:yy Client-y-Name

comment:6 Changed 3 years ago by anonymous

appendix: Where do I find this config file: hostapd/hostapd.conf (http://w1.fi/cgit/hostap/tree/hostapd/hostapd.conf) It is NOT in /root/hostapd/~ ...

comment:7 Changed 2 years ago by anonymous

Did this issue ever get resolved??

comment:8 Changed 20 months ago by filip@…

Hello, I am facing just the same issue with latest trunk build. 40HT is configured but not really used (v3 device).

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