I'm starting a new bug as there appear to be plenty of wireless issues in Mga2 beta but I can't tell if this is really a duplicate.

Problem:  After upgrade from mga1 wireless refuses to associate or complete connection.  The interface is configured using draknetcenter, and the "interface controlled by network manager" tick box is unchecked.  The "iwlwifi" kernel module is installed and the interface sees the correct  network in response to "iwlist wlan0 scanning". (So this appears NOT to be a driver issue).

One observation which may or may not be relevant is that the draknet tools appear no misremember the type of wireless encryption.  Though I set this to "wpa2/preshared key" on a restart of draknetcenter it reverts to the incorrect value of "restricted WEP".

Workaround: Put interface under control of networkmanager and install network manager plasma applet to control.  Then networks associate correctly (after much faff with the brokenness of kdewallet)

Machine:  Samsung X360 notebook.  

# lspcidrake  -v | grep wifi
iwlwifi         : Intel Corporation|Ultimate N WiFi Link 5300 [NETWORK_OTHER] (vendor:8086 device:4235 subv:8086 subd:1001)
# lsmod | grep wifi
iwlwifi               309216  0 
mac80211              440190  1 iwlwifi
cfg80211              199805  2 mac80211,iwlwifi
# uname -a
Linux gibbs 3.3.3-desktop-1.mga2 #1 SMP Mon Apr 23 08:40:56 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

Running draknetcenter gives a log of failed connect attempts (to the desired ORAC).  The attachment is the relevant extract from /var/log/messages