Hi, got quite the same issues using network-manager 1.4.2-2, network-manager-gnome 1.4.2-1, and wpasupplicant 2.5-2+v2.4-3+b1 trying to connect dongles AVM FRITZ!Wlan N, D-Link DWA-160 B2, and ASUS USB-N53 to the acces-points of routers Netgear DGND3800b and FRITZ!Box 7490.
Using networking.service together with appropriate /etc/network/interfaces and wpa_supplicant could be useful as a workaround. At least this worked for me in 2012 when I bought those dongles. Greeting, Georg -- ... post tenebras spero lucem. (Hiob 17,12 Vul.)
