Bug 911315

Configuring Edimax Wifi USB Stick for home network fails after upgrade to OpenSUSE 13.2. Newly specifying WLAN setting under YaST made me locate the critical network option in YaST: Specification of field 'Access Point' under YaST Wireless Expert Settings in combination with Network Settings > Global Options > Network Setup Method 'Wicked Service' yields an error 'changeDevice() failed'.

Hardware is
> linux:/etc/sysconfig/network # lsusb
> Bus 001 Device 002: ID 7392:7711 Edimax Technology Co., Ltd EW-7711UTn
> nLite Wireless Adapter [Ralink RT2870]

Device is automatically recognized at boot up and an network error is displayed. The file '/var/log/messages' shows:
> 2014-12-28T22:49:48.074468+01:00 linux wickedd[7146]: ni_wpa_network_set
> failed: fi.epitest.hostap.WPASupplicant.InvalidOptions (Did not receive
> correct message arguments.)
> 2014-12-28T22:49:48.075229+01:00 linux wicked[8032]: device wlp0s2f1u1
> failed: call to org.opensuse.Network.Wireless.changeDevice() failed:
> General failure
> 2014-12-28T22:49:48.079051+01:00 linux wicked[8032]: wlp0s2f1u1
>       device-ready
2014-12-28T22:49:48.079374+01:00 linux wicked[8032]: wlp0s2f1u1
>       device-not-running

while the user gets the following message manually restarting network service:
> linux:/etc/sysconfig/network # systemctl restart wickedd       
> linux:/etc/sysconfig/network # wicked ifup all  
> wicked: device wlp0s2f1u1 failed: call to 
> org.opensuse.Network.Wireless.changeDevice() failed: General failure
> lo              up
> wlp0s2f1u1      device-not-running

The error disappears transitioning from config ifcfg-wlp0s2f1u1.old to ifcfg-wlp0s2f1u1:
> linux:/etc/sysconfig/network # diff ifcfg-wlp0s2f1u1 ifcfg-wlp0s2f1u1.old
> 12c12
> < WIRELESS_AP=''
> ---
> > WIRELESS_AP='9C:C7:A6:39:62:4B'

System is
> linux:/etc/sysconfig/network # uname -a
> Linux linux-to84 3.16.7-7-desktop #1 SMP PREEMPT Wed Dec 17 18:00:44
> UTC 2014 (762f27a) x86_64 x86_64 x86_64 GNU/Linux
> linux:/etc/sysconfig/network # cat /etc/issue
> Welcome to openSUSE 13.2 "Harlequin" - Kernel \r (\l).