Airport can't connect to network when woken up

Hello,

I have a problem when waking up my Macbook Pro, I can not connect
to wireless at home (from time to time). It takes me several times to
close and open notebook to connect. The problem is only at home, I have
tried three different Wireless APs. My iPhone and other notebooks have
no problems connecting at all. I am certain that problem is not with
APs (I've tried to change channels, etc.). What I think is a problem is,
that sometimes Airport card wrongly detects country code and reverts
to a few channels. This is from the logs -- unsuccesful connection:

1. 11.2009 11:52:09 airportd[7004] Apple80211Associate() failed -3905 (Timeout)
1. 11.2009 11:52:09 kernel directed SSID scan fail
1. 11.2009 11:52:17 airportd[7004] Apple80211Associate() failed -3905 (Timeout)
1. 11.2009 11:52:17 kernel en1: 802.11d country code set to 'X3'.
1. 11.2009 11:52:17 kernel en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
1. 11.2009 11:52:20 kernel en1: 802.11d country code set to 'SY'.
1. 11.2009 11:52:20 kernel en1: Supported channels 149 153 157 161
1. 11.2009 11:52:53 kernel Assertion failed: file "/SourceCache/AirPortDriverBrcm4311/AirPortDriverBrcm4311-410.91.20/src/wl/sys/ wlc_scan.c", line 1375: wlc valid_chanspecdb(wlc->cmi, chanspec_start)
1. 11.2009 11:52:53 kernel Assertion failed: file "/SourceCache/AirPortDriverBrcm4311/AirPortDriverBrcm4311-410.91.20/src/wl/sys/ wlc_scan.c", line 1375: wlc valid_chanspecdb(wlc->cmi, chanspec_start)
1. 11.2009 11:53:01 airportd[7130] Scan() error 16 (Resource busy)
1. 11.2009 11:53:01 airportd[7130] __performScan() EBUSY, sleep 1 sec, try again
1. 11.2009 11:53:01 kernel en1: 802.11d country code set to 'X3'.
1. 11.2009 11:53:01 kernel en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
1. 11.2009 11:53:02 airportd[7130] Scan() error 16 (Resource busy)
1. 11.2009 11:53:02 airportd[7130] __performScan() EBUSY, sleep 1 sec, try again
1. 11.2009 11:53:03 airportd[7130] Scan() error 16 (Resource busy)
1. 11.2009 11:53:03 airportd[7130] __performScan() EBUSY, sleep 1 sec, try again
1. 11.2009 11:53:03 kernel en1: 802.11d country code set to 'SY'.
1. 11.2009 11:53:03 kernel en1: Supported channels 149 153 157 161
1. 11.2009 11:53:04 kernel Assertion failed: file "/SourceCache/AirPortDriverBrcm4311/AirPortDriverBrcm4311-410.91.20/src/wl/sys/ wlc_scan.c", line 1375: wlc valid_chanspecdb(wlc->cmi, chanspec_start)
1. 11.2009 11:53:04 kernel Assertion failed: file "/SourceCache/AirPortDriverBrcm4311/AirPortDriverBrcm4311-410.91.20/src/wl/sys/ wlc_scan.c", line 1375: wlc valid_chanspecdb(wlc->cmi, chanspec_start)
1. 11.2009 11:53:04 kernel directed SSID scan fail
1. 11.2009 11:53:12 airportd[7130] Apple80211Associate() failed -3905 (Timeout)
1. 11.2009 11:53:13 kernel directed SSID scan fail
1. 11.2009 11:53:21 airportd[7130] Apple80211Associate() failed -3905 (Timeout)
1. 11.2009 11:53:22 kernel directed SSID scan fail


Successful connection:


1. 11.2009 11:54:51 kernel en1: 802.11d country code set to 'X3'.
1. 11.2009 11:54:51 kernel en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
1. 11.2009 11:54:52 kernel Auth result for: 00:19:cb:e4:c9:9a MAC AUTH succeeded
1. 11.2009 11:54:52 kernel AirPort: Link Up on en1
1. 11.2009 11:54:52 kernel AirPort: RSN handshake complete on en1

Also, I was not able to find current Airport Express firmware update for
10.6.1. The last one I found on Apple.com pages was 2008-004 (which does not
work on 10.6.1), so I'm not sure if I have the latest firmware.