I just installed Kubuntu 11.04 on a machine, it's a completely fresh install. My network is called "linksys" (don't blame me, someone else set it up), and I know for a fact it is secured by WPA2 Personal. I am in fact connected to it on a different machine (also running Kubuntu 11.04) on the same network as I type this right now.
I also know the network card works with this OS. I just had a different install of Kubuntu 11.04 on it before, just reformatted and installed fresh. It was working fine on the old install.
Here's what's happening. When I go to add a wireless network connection, and type "linksys" as the wireless SSID, then go to the wireless security tab, the dropdown for "Security" contains only the option "None". If I type in any other SSID, the Security dropdown is normal (containing options like WEP, WPA/WPA2 Personal, etc...). So it seems it is only not letting me select a security method for my network, "linksys". Almost like it has decided for some reason it is definitely not a secured network.
But it is. If I try to connect to it without selecting a security, it simply fails. And, as I said, I am connected to it right now on a different computer with the same OS using WPA2 Personal.
Any reason why this might be happening?