Thanks for your help.
Not much different than before wlan1 became wlan0 as expected but no ip at bootup
So still the same until /etc/init.d/net.wlan0 restart
then I receive an IP and it's working again
here is the result:
martin@MATACILT /etc/init.d $ cd /etc/init.d && ls -la
total 356
drwxr-xr-x 2 root root 4096 2008-12-23 19:09 .
drwxr-xr-x 80 root root 4096 2008-12-24 00:15 ..
-rwxr-xr-x 1 root root 1337 2008-07-30 23:15 915resolution
-rwxr-xr-x 1 root root 6557 2008-11-12 22:45 alsasound
-rwxr-xr-x 1 root root 5696 2008-08-06 13:15 alsasound.new
-rwxr-xr-x 1 root root 3702 2008-10-26 10:22 apache2
-rwxr-xr-x 1 root root 451 2008-12-15 23:55 avahi-daemon
-rwxr-xr-x 1 root root 445 2008-12-15 23:55 avahi-dnsconfd
-rwxr-xr-x 1 root root 3505 2008-12-21 00:34 bootmisc
-rwxr-xr-x 1 root root 1188 2008-06-05 23:36 checkfs
-rwxr-xr-x 1 root root 3226 2008-06-05 23:36 checkroot
-rwxr-xr-x 1 root root 3054 2008-06-05 23:36 clock
-rwxr-xr-x 1 root root 1767 2008-12-21 00:34 consolefont
-rwxr-xr-x 1 root root 540 2008-10-17 05:43 consolekit
-rwxr-xr-x 1 root root 531 2008-10-26 09:53 cpufrequtils
-rwxr-xr-x 1 root root 1722 2008-10-20 23:11 crypto-loop
-rwxr-xr-x 1 root root 299 2008-12-12 00:06 cupsd
-rwxr-xr-x 1 root root 1152 2008-10-17 06:05 dbus
lrwxrwxrwx 1 root root 21 2008-07-05 17:17 depscan.sh -> ../../sbin/depscan.sh
-rwxr-xr-x 1 root root 807 2008-12-21 00:34 devfs
-rwxr-xr-x 1 root root 627 2008-12-18 23:12 device-mapper
-rwxr-xr-x 1 root root 660 2008-12-08 22:55 dmcrypt
-rwxr-xr-x 1 root root 301 2008-12-21 00:34 dmesg
-rwxr-xr-x 1 root root 547 2008-12-18 23:12 dmeventd
-rwxr-xr-x 1 root root 924 2008-12-21 00:53 dnsmasq
-rwxr-xr-x 1 root root 993 2008-11-25 21:31 esound
-rwxr-xr-x 1 root root 2110 2008-12-21 00:34 fsck
lrwxrwxrwx 1 root root 24 2008-12-21 00:34 functions.sh -> //lib/rc/sh/functions.sh
-rwxr-xr-x 1 root root 741 2008-12-15 19:28 git-daemon
-rwxr-xr-x 1 root root 951 2008-07-09 20:24 gpm
-rwxr-xr-x 1 root root 1111 2008-10-26 20:55 hald
-rwxr-xr-x 1 root root 3407 2008-12-22 19:38 hdparm
-rwxr-xr-x 1 root root 377 2008-12-21 00:34 hostname
-rwxr-xr-x 1 root root 2730 2008-12-21 00:34 hwclock
-rwxr-xr-x 1 root root 3139 2008-12-21 00:36 hylafax
-rwxr-xr-x 1 root root 524 2008-10-17 05:50 ivman
-rwxr-xr-x 1 root root 1813 2008-12-21 00:34 keymaps
-rwxr-xr-x 1 root root 389 2008-12-21 00:34 killprocs
-rwxr-xr-x 1 root root 693 2008-12-21 00:34 local
-rwxr-xr-x 1 root root 1951 2008-12-21 00:34 localmount
-rwxr-xr-x 1 root root 1536 2008-12-21 00:34 modules
-rwxr-xr-x 1 root root 1013 2008-12-21 00:34 mount-ro
-rwxr-xr-x 1 root root 739 2008-12-21 00:34 mtab
-rwxr-xr-x 1 root root 10661 2008-12-18 23:14 mysql
-rwxr-xr-x 1 root root 6632 2008-12-18 23:14 mysqlmanager
lrwxrwxrwx 1 root root 6 2008-07-05 17:17 net.eth0 -> net.lo
-rwxr-xr-x 1 root root 15177 2008-12-21 00:34 net.lo
-rwxr-xr-x 1 root root 2074 2008-12-21 00:34 netmount
lrwxrwxrwx 1 root root 18 2008-07-08 14:05 net.wlan0 -> /etc/init.d/net.lo
lrwxrwxrwx 1 root root 6 2008-07-09 23:41 net.wlan1 -> net.lo
-rwxr-xr-x 1 root root 1566 2008-12-08 23:38 nscd
-rwxr-xr-x 1 root root 833 2008-12-21 11:49 ntp-client
-rwxr-xr-x 1 root root 827 2008-12-21 11:49 ntpd
-rwxr-xr-x 1 root root 723 2008-12-21 00:34 numlock
-rwxr-xr-x 1 root root 1871 2008-12-18 23:21 pciparm
-rwxr-xr-x 1 root root 1228 2008-10-04 20:54 pe-format
-rwxr-xr-x 1 root root 1919 2008-12-21 00:34 procfs
-rwxr-xr-x 1 root root 538 2008-08-25 20:27 pwcheck
-rwxr-xr-x 1 root root 666 2008-07-05 23:48 pydoc-2.4
-rwxr-xr-x 1 root root 666 2008-12-11 00:27 pydoc-2.5
-rwxr-xr-x 1 root root 304 2008-12-18 21:58 reboot.sh
-rwxr-xr-x 1 root root 276 2008-06-05 23:36 rmnologin
-rwxr-xr-x 1 root root 592 2008-12-21 00:34 root
-rwxr-xr-x 1 root root 558 2008-09-17 20:06 rsyncd
lrwxrwxrwx 1 root root 23 2008-07-05 17:17 runscript.sh -> ../../sbin/runscript.sh
-rwxr-xr-x 1 root root 525 2008-08-25 20:27 saslauthd
-rwxr-xr-x 1 root root 623 2008-12-21 00:34 savecache
-rwxr-xr-x 1 root root 696 2008-09-28 20:09 sendmail
-rwxr-xr-x 1 root root 385 2008-12-18 21:58 shutdown.sh
-rwxr-xr-x 1 root root 2309 2008-07-06 02:21 slpd
-rwxr-xr-x 1 root root 2114 2008-11-04 22:01 sshd
-rwxr-xr-x 1 root root 817 2008-10-26 10:41 svnserve
-rwxr-xr-x 1 root root 601 2008-12-21 00:34 swap
-rwxr-xr-x 1 root root 452 2008-12-18 22:08 syndaemon
-rwxr-xr-x 1 root root 376 2008-12-21 00:34 sysctl
-rwxr-xr-x 1 root root 1291 2008-12-21 00:34 sysfs
-rwxr-xr-x 1 root root 1894 2008-12-04 14:32 syslog-ng
-rwxr-xr-x 1 root root 765 2008-12-21 00:34 termencoding
-rwxr-xr-x 1 root root 4702 2008-12-23 19:09 udev
-rwxr-xr-x 1 root root 2579 2008-12-23 19:09 udev-dev-tarball
-rwxr-xr-x 1 root root 2727 2008-12-23 19:09 udev-mount
-rwxr-xr-x 1 root root 508 2008-12-23 19:09 udev-postmount
-rwxr-xr-x 1 root root 947 2008-12-21 00:34 urandom
-rwxr-xr-x 1 root root 530 2008-10-17 00:59 vixie-cron
-rwxr-xr-x 1 root root 5210 2008-10-17 05:50 xdm
martin@MATACILT /etc/init.d $ sudo ifconfig -a
Password:
eth0 Link encap:Ethernet HWaddr 00:1b:38:7d:4f:7e
inet addr:192.168.10.20 Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:236 errors:0 dropped:0 overruns:0 frame:0
TX packets:236 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:14576 (14.2 KiB) TX bytes:14576 (14.2 KiB)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 00:1b:77

b9:9b
inet6 addr: fe80::21b:77ff:feab:b99b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:304 (304.0 B) TX bytes:6191 (6.0 KiB)
wmaster0 Link encap:UNSPEC HWaddr 00-1B-77-AB-B9-9B-77-6C-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
martin@MATACILT /etc/init.d $ /etc/init.d/net.wlan0 restart
* net.wlan0: superuser access required
martin@MATACILT /etc/init.d $ sudo /etc/init.d/net.wlan0 restart
* Bringing down interface wlan0
* Removing addresses
* Stopping wpa_cli on wlan0... [ ok ]
* Stopping wpa_supplicant on wlan0... [ ok ]
* Bringing up interface wlan0
* Starting wpa_supplicant on wlan0... [ ok ]
* Starting wpa_cli on wlan0... [ ok ]
* Backgrounding ......
* WARNING: net.wlan0 has started, but is inactive
martin@MATACILT /etc/init.d $ sudo ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1b:38:7d:4f:7e
inet addr:192.168.10.20 Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:268 errors:0 dropped:0 overruns:0 frame:0
TX packets:268 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:17545 (17.1 KiB) TX bytes:17545 (17.1 KiB)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 00:1b:77

b9:9b
inet addr:192.168.0.200 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::21b:77ff:feab:b99b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:86 errors:0 dropped:0 overruns:0 frame:0
TX packets:169 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:44963 (43.9 KiB) TX bytes:37573 (36.6 KiB)
wmaster0 Link encap:UNSPEC HWaddr 00-1B-77-AB-B9-9B-77-6C-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
martin@MATACILT /etc/init.d $ sudo iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wmaster0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"we_are_here"
Mode:Managed Frequency:2.437 GHz Access Point: 00:17:3F:A5:36:43
Bit Rate=54 Mb/s Tx-Power=-1 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Encryption key:E141-3F8C-B969-173C-F410-FDD6-B9B9-26B1 [4] Security mode:open
Power Management:off
Link Quality=96/100 Signal level:-30 dBm Noise level=-127 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
sit0 no wireless extensions.
martin@MATACILT /etc/init.d $