[ubuntu] No open access point after WPA from command line

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http://ubuntuforums.org – Hi All, I am using Ubuntu 10.04 and I want to use the command line to configure the wireless. This is as a test so I can use the same commands later on a similar system without possibility to access the Network Manager. It seems to be going OK and I am possible of connecting to wpa, wpa2, open and WEP protected access points. However, after using wpa supplicant to connect to wifi, when I want to connect to open wifi, with the same commands that worked before, I don't receive an access point. As I have an electronics background, I tried hitting the machine, but it didn't seem to help. I (Hardware)