wifi auto-detection not working any more

["J. Bakshi" <bakshi12@gmail.com>]

Dear list,

Since long I'm using ifplugd + guess-net and wpa_supplicant to auto detect the available
wired/wifi network and connect with the available. I have placed the wpa_supplicat at
/etc/rc.local file as

`````````
 wpa_supplicant -B -Dnl80211 -iwlan0 -c  /usr/local/etc/my.wpa_supplicant.conf
``````````

I have come to know that it is OK to place the wpa related configuration
at the /etc/interfaces. Hence I have modified the interfaces as

```````````
mapping wlan0
     script guessnet-ifupdown
     map default: office-wifi
     map  office-wifi open unknown
     map timeout: 12
     # map init-time: 12   # for slow drivers
     map verbose: true
     map debug: true

 iface office-wifi inet dhcp
   wpa-driver nl80211 ## added modification
   wpa-conf /usr/local/etc/my.wpa_supplicant.conf ## added modification
   test wireless  mac  00:1C:F0:3D:4C:C9
``````

and remove the wpa related line from /etc/rc.local

But the auto detection and association is not working any more.
If I check by "ps -e | grep wp" there is no wpa_supplicant running.

Could any one suggest what is actually missing here ?

TIA