I have a laptop running kubuntu 8.10. When I turn it on, I want to to connect automatically to my wireless router. So I set up a stanza in /etc/network/interfaces to do this:
iface lo inet loopback
iface wlan0 inet static
This works fine. However: when I then login to my computer, I want Network Manager to still work, so if I am not at home or not near my router, I can then connect to other available networks.
But Network Manager (knetworkmanager) does not seem to want to manage this connection. Its icon on my panel is a little world, instead of bars like it should be when a network is connected. When I tell it to "Disable Wireless," nothing seems to happen.
I have tried changing my /etc/NetworkManager/nm-system-settings.conf files, to set "managed=true" instead of false under [ifupdown]. This seems to make my stanza in the /etc/network/interfaces files get ignored on boot, though, so my computer won't connect.
How can I have both my automatic connection to a network on boot (via the /etc/network/interfaces entry) and have Network Manager work so I can connect to other networks when not at home?
Alternatively, how can I reset my config files on the fly and restart networking, so Network Manager will work correctly, without having to reboot? It seems like when I try to do this (/etc/init.d/networking restart), it keeps saying my wlan device is busy.
Please help me to solve this, any help appreciated.