Experienced same problems (iwlwifi) - was not able to connect using wicd or wpa_supplicant directly. wpa_supplicant gave errors:
Successfully initialized wpa_supplicant wlan0: SME: Trying to authenticate with XX:XX:XX:XX:XX:XX (SSID='ssid' freq=2422 MHz) wlan0: Trying to associate with XX:XX:XX:XX:XX:XX (SSID='ssid' freq=2422 MHz) wlan0: Associated with XX:XX:XX:XX:XX:XX wlan0: CTRL-EVENT-DISCONNECTED bssid=XX:XX:XX:XX:XX:XX reason=3 locally_generated=1 wlan0: WPA: 4-Way Handshake failed - pre-shared key may be incorrect wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="ssid" auth_failures=1 duration=10 reason=WRONG_KEY wlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD wlan0: CTRL-EVENT-SSID-REENABLED id=0 ssid="ssid" I found out I'm able to connect using nm (nm-tui). Uninstalling network- manager (apt-get autoremove network-manager) did the trick and I can use wicd (wpa_supplicant) again. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1173759 Title: Ubuntu 13.04 can detect wi-fi but can't connect Status in linux package in Ubuntu: Expired Bug description: HP Pavilion laptop with Ralink RT5390 wireless interface 1. Can detect home wi-fi signal but can't connect. Keeps asking for password then "disconnects" over and over again. 2. All other computers, tablets, and smartphones at home can connect to the wi-fi without any trouble at all. 3. HP Pavilion laptop can connect to the internet if tethered to my smartphone (used as a portable wi-fi hotspot). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173759/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp