problema router wi fi con pass wpa

[christianMI]

ciao ragazzi sono nuovo dell ambiente linux , e ho un problema con il mio router linksys l' errore che mi da e questo
Configuring interface ath0=lan1 (inet)
run-parts --verbose /etc/network/if-pre-up.d
Starting WPA wireless connection...
/etc/network/if-pre-up.d/0001xandros-wireless-tools: line 195: /usr/sbin/wpa_supplicant: No such file or directory
Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory
Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory
Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory
ifconfig $IFACE up
dhclient3 -cf /etc/dhcp3/dhclient.$LOGICAL.conf -pf /var/run/dhclient.$IFACE.pid -lf /var/run/dhclient.$IFACE.leases $IFACE
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit ISC DHCP

Listening on LPF/ath0/00:15:af:a2:b2:e0
Sending on LPF/ath0/00:15:af:a2:b2:e0
Sending on Socket/fallback
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 4
No DHCPOFFERS received.
Trying recorded lease 192.168.2.2
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.

--- 192.168.2.1 ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms

No working leases in persistent database - sleeping.
run-parts --verbose /etc/network/if-up.d

quello che nn capisco e che se mi connetto a un router senza pass della linksys mi si connette tranquillamente