Try dropping it down to a HT20 channel.



adrian

On 23 April 2013 05:41, Lev Serebryakov <l...@freebsd.org> wrote:
> Hello, Freebsd-wireless.
>
>  Now my router/AP is new hardware in new case, and it is not
> overheating for sure.
>  AP's WiFi card is Ubiquity SR-71E MiniPCIe card. Client is Intel
> Advanced-N card. When AP sends stable stream of data (like RDesktop
> connection from WiFi client to computer on wired network), AP gives
> big pauses sometime, with "ath0: stuck beacon; resetting (bmiss count
> 4)" message. These pauses long enough to RDesktop client notice them
> and try to reconnect. But no client dissociation occurs.
>
>   Here is card:
>
> ath0: <Atheros 9280> mem 0xd0000000-0xd000ffff irq 18 at device 0.0 on pci3
> ath0: [HT] enabling HT modes
> ath0: [HT] 1 stream STBC receive enabled
> ath0: [HT] 1 stream STBC transmit enabled
> ath0: [HT] 2 RX streams; 2 TX streams
> ath0: AR9280 mac 128.2 RF5133 phy 13.0
> ath0: 2GHz radio: 0x0000; 5GHz radio: 0x00c0
>
>  Here is AP settings:
>
>> ifconfig ath0
> ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290
>         ether 00:15:6d:85:5f:fc
>         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>         media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
>         status: running
>> ifconfig wlan0
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         ether 00:15:6d:85:5f:fc
>         inet 192.168.135.1 netmask 0xffffff00 broadcast 192.168.135.255
>         inet6 fe80::215:6dff:fe85:5ffc%wlan0 prefixlen 64 scopeid 0x6
>         inet6 2001:470:923f:2::1 prefixlen 64
>         nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>         media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
>         status: running
>         ssid home.serebryakov.spb.ru channel 3 (2422 MHz 11g ht/40+) bssid 
> 00:15:6d:85:5f:fc
>         regdomain ROW country DE ecm authmode WPA2/802.11i privacy MIXED
>         deftxkey 3 AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 30 scanvalid 60
>         protmode CTS ampdulimit 64k ampdudensity 8 shortgi wme burst
>         dtimperiod 1 -dfs
>
>  Here is ath-related dmesg:
>
> ath0: stuck beacon; resetting (bmiss count 4)
> ath0: stuck beacon; resetting (bmiss count 4)
> ath0: stuck beacon; resetting (bmiss count 4)
> ath0: ath_bar_response: huh? bar_tx=0, bar_wait=0
> ath0: stuck beacon; resetting (bmiss count 4)
>
>
>  Here is my sources: "10.0-CURRENT FreeBSD 10.0-CURRENT #0 r249767M:
> Mon Apr 22 22:22:47 MSK 2013".
>
>  I have old router with AR9220 card, which I could use as spectrum
> analyzer, if I'm giving proper instructions how to setup in in such
> way :)
>
> --
> // Black Lion AKA Lev Serebryakov <l...@freebsd.org>
>
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