#17354: ath9k packet loss with wds
------------------------------+-----------------------------------
Reporter: dphi <philipp@…> | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Barrier Breaker 14.07
Component: kernel | Version: Barrier Breaker 14.07
Keywords: |
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I have two ath9k based access points, connected via WDS. One acts as the
gateway, the other as a repeater.
Wifi connections to the repeater become unusable after some time and dhcp
fails.
Symptoms besides the slowdown:
- dhcp does not work anymore, but clients stay associated and can
associate
- Kernel: "ath: phy0: Failed to stop TX DMA, queues=..."
- ping loss of wifi clients connected to the repeater
- to repeater 47% loss
- to gateway 68% loss (via the repeater)
Both access points run openwrt 14.07-rc2. Executing "wifi" on the repeater
solves the issue for a while.
{{{
gateway:
system type : Atheros AR9344 rev 2
machine : TP-LINK TL-WDR3600/4300/4310
}}}
{{{
repeater:
system type : Atheros AR9341 rev 3
machine : TP-LINK TL-WR841N/ND v8
}}}
The wireless configuration of the repeater:
{{{
$ cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option macaddr '10:fe:ed:8a:2a:50'
option hwmode '11ng'
list ht_capab 'LDPC'
list ht_capab 'SHORT-GI-20'
list ht_capab 'SHORT-GI-40'
list ht_capab 'TX-STBC'
list ht_capab 'RX-STBC1'
list ht_capab 'DSSS_CCK-40'
option disabled '0'
option country 'DE'
option htmode 'HT40'
option txpower '20'
option channel '6'
config wifi-iface
option device 'radio0'
option ssid 'SSID'
option mode 'sta'
option wds '1'
option bssid '64:70:02:B5:D5:FD'
option network 'lan'
option encryption 'psk2'
option key 'KEY'
config wifi-iface
option device 'radio0'
option mode 'ap'
option ssid 'SSID'
option wds '1'
option network 'lan'
option encryption 'psk2'
option key 'KEY'
}}}
Thanks!
--
Ticket URL: <https://dev.openwrt.org/ticket/17354>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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