[ubuntu] wireless connection from ubuntu

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http://ubuntuforums.org – Hi - am having wireless connection probs. Have the trawled this site and others for help but can't figure it out. Probably doing something stupid... I have a wireless router running wpa2 which is being used fine by a variety of devices. I have tried 2 machines now running ubuntu 12 (and tried another simmilar distro) and I can't connect. Wired connection is fine. It detects the wireless network but wont establish a connection. I've tried disabling security, picking different wireless frequencies. any help gratefully received. here's the syslog with networkmanager messages: (Hardware)