Two green lights and one blinking orange, but still no conne

I have been having working my Nabaztag for 1 year ago; it worked very well! But I put off it during 1 day and when I put on, it no working :-(

I see two green lights and the third blinking orange, but still no connection.

> In the configuration nabaztag page (192.168.0.1):
The SSID is the same that SSID in wireless router (Linksys WRT54G), the channel is the same (ch 11), the WEP encryption is checked "NO" (in wireless router is "NO"), WEP key is empty, Authentication is "OpenSystem". I have checked the DHCP Enabled box, of course.

> In the configuration Linksys WRT54G:
Security mode is "disable" (desactivado) and DHCP servidor is "enable" (activado). I have'nt firewall for my Linksys WRT54G (I have it for my PC with WindowsXP).

I am tired to prove every day; I dont understand...