WIFI issue - multiple AP, same SSID, different channel

[qtch]

Hello,
I'm using Olinuxino-IMX23 board and Archlinux 06.2014. My application uses TP-TN722N USB WIFI CARD and netctl for network configuration. I have one issue with WIFI operation. I'm using my board in area, where there is many APs with same SSID but different channels. Linux is not switching between different AP when there is different channel. Example:
After reset I'm connecing to AP1 CH1, moved 100m, lost signal but I'm in range of AP2 CH6, system is not connecting to WIFI.
When I'm back in AP1 CH1 range system is reconnecting and works fine. When I'm in AP2 CH6 range, typing "iwconfig wlan0 channel 6" helps. How can I configure my system to handle this automatically ?

[qtch]

When I get in range of AP3 CH1 while I was connected to AP1 CH1 it is not connecting to AP3

[WarheadsSE]

How are you starting the netctl profile(s)?

[qtch]

netctl start/enable wireless-wpa-static

[WarheadsSE]

Try netctl-auto@wlan0

[qtch]

It looks like switching AP is working, but sometimes autentication fails (timeout),

$this->bbcode_second_pass_quote('', '[')root@alarm ~]# dmesg | grep wlan0
[ 11.820000] systemd[1]: Expecting device sys-subsystem-net-devices-wlan0.device...
[ 31.610000] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 34.970000] wlan0: authenticate with fc:0a:81:c5:ef:30
[ 35.500000] wlan0: direct probe to fc:0a:81:c5:ef:30 (try 1/3)
[ 35.710000] wlan0: send auth to fc:0a:81:c5:ef:30 (try 2/3)
[ 35.710000] wlan0: authenticated
[ 35.730000] wlan0: associate with fc:0a:81:c5:ef:30 (try 1/3)
[ 35.730000] wlan0: RX AssocResp from fc:0a:81:c5:ef:30 (capab=0x411 status=0 aid=2)
[ 35.760000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 35.760000] wlan0: associated
[ 154.590000] wlan0: authenticate with fc:0a:81:ca:a0:e0
[ 155.120000] wlan0: direct probe to fc:0a:81:ca:a0:e0 (try 1/3)
[ 155.330000] wlan0: direct probe to fc:0a:81:ca:a0:e0 (try 2/3)
[ 155.540000] wlan0: direct probe to fc:0a:81:ca:a0:e0 (try 3/3)
[ 155.750000] wlan0: authentication with fc:0a:81:ca:a0:e0 timed out
[ 156.820000] wlan0: deauthenticating from fc:0a:81:c5:ef:30 by local choice (reason=2)
[ 157.680000] wlan0: authenticate with fc:0a:81:ca:a1:90
[ 158.290000] wlan0: send auth to fc:0a:81:ca:a1:90 (try 1/3)
[ 158.500000] wlan0: send auth to fc:0a:81:ca:a1:90 (try 2/3)
[ 158.500000] wlan0: authenticated
[ 158.510000] wlan0: associate with fc:0a:81:ca:a1:90 (try 1/3)
[ 158.520000] wlan0: RX AssocResp from fc:0a:81:ca:a1:90 (capab=0x411 status=0 aid=4)
[ 158.540000] wlan0: associated

[qtch]

I've tried auto profiles with Secutiry=wpa and there is still no reconnection. It looks like ath9 is not triggering DISCONNECTED event! Any ideas ?

[qtch]

even when i powered off my royter iwconfig shows link quality 70/70 and all data valid