I want to change network interface on my home server, from a wirebased (eth0) to a wireless (wlan0) using a USB-wlan card. I've installed the RT73-drivers using http://ubuntuforums.org/showthread.php?t=400236 and it seems to be working.
My problem is that wlan0 only works when the wire for eth0 is connected. As soon as I disconnect the wire, the wireless interface goes down.
I'm guessing that it has something to do with my /etc/network/interfaces so here it is:
# The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 192.168.1.19 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 gateway 192.168.1.1 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 192.168.1.1 dns-search workgroup auto wlan0 iface wlan0 inet static address 192.168.1.20 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 gateway 192.168.1.1 dns-nameservers 192.168.1.1 dns-search workgroup pre-up ifconfig wlan0 up pre-up iwpriv wlan0 set AuthMode=WPAPSK pre-up iwpriv wlan0 set EncrypType=TKIP pre-up iwpriv wlan0 set WPAPSK=MY_PASSWORD pre-up iwpriv wlan0 set SSID=MY_SSID pre-up iwpriv wlan0 set NetworkType=Managed
Both interfaces are connected to the same router.
I'm running Ubuntu Server 8.04