WIRELESS PROLEM

I have this wireless card:
root@1[sirio81]# lspci | grep Wireless
0000:01:03.0 Network controller: Intel Corporation PRO/Wireless 2200BG Network Connection (rev 05)

Its module are loaded
root@1[sirio81]# lsmod | grep ipw
ipw2200 127684 0
ieee80211 28104 1 ipw2200

It's working, knemo show that eth1 is connected, the HW address, the ESSID, modality managed.
The frequency us not shown, bit rate is 0, like nois and link quality.
It should mean it's connected with the router (192.168.1.1) but...

root@1[sirio81]# ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
From 192.168.1.127 icmp_seq=1 Destination Host Unreachable
From 192.168.1.127 icmp_seq=2 Destination Host Unreachable
From 192.168.1.127 icmp_seq=3 Destination Host Unreachable

I'm not using any encritpion and with windows or ubuntu dapper it works without problems.
I can't understund what's the problem.
Here follow ather details:

root@1[sirio81]# iwconfig
eth1 unassociated ESSID:"linksys" Nickname:"default"
Mode:Managed Channel=0 Access Point: Not-Associated
Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=8/0
Retry limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

root@1[sirio81]# ifconfig
eth1 Link encap:Ethernet HWaddr 00:15:00:3C:A2:0D
inet addr:192.168.1.127 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:4480 errors:0 dropped:0 overruns:0 frame:0
TX packets:1578 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:22 Memory:fa9ff000-fa9fffff

root@1[sirio81]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
default 192.168.1.1 0.0.0.0 UG 0 0 0 eth1

May you helo me?
This is the only true problem I have with mepis.
Thanks!