Hello everybody, I am quite new in BBB's world and I feel stuck in a 
ridiculous way as I am not able to connect BBB by WIFI, by editing 
/etc/network/interfaces and as I am trying to  connect with and WPA WIFI, I 
ought to edit the file /etc/wpa_supplicant/wpa_supplicant.conf .

I want to have BBB WIFI and able to change SSID, PSK, IP, NETMASK.... and 
so on, just using node js which modifies the interfaces and 
wpa_supplicant.conf  files and restarting the wlan0 interface, so tools 
like wicd or connman (I used them and worked perfectly) are not the best 
way as them limit the way to change settings.

I've been trying almost everything I found over Internet, with no results.

*STARTING POINT:*

   - Beaglebone Black Rev C 
      - Distributions used: 
         - Debian GNU/Linux 8.3 Jessie (I rather prefer to use this) 
            - Kernel 4.1.15-ti-rt-r43 
         - Debian 8.2 Jessie (is a tester distribution so I prefer not to 
         use this one) 
         - Debian 7.9 Wheezy (If anything goes well, I wont reject using 
         this) 
      - USB WIFI Adapter TL-WN722N & AWUS036H 
   - WIFI with WPA2-Personal 

The most common issue I get is .... after writing interfaces... I try to 
connect and:

*root@beaglebone:/etc/network# ifup wlan0*

*Internet Systems Consortium DHCP Client 4.3.1*

*Copyright 2004-2014 Internet Systems Consortium.*

*All rights reserved.*

*For info, please visit https://www.isc.org/software/dhcp/*

 

*Listening on LPF/wlan0/d8:5d:4c:87:68:6c*

*Sending on   LPF/wlan0/d8:5d:4c:87:68:6c*

*Sending on   Socket/fallback*

*DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4*

*DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6*

*DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11*

*DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 14*

*DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 21*

*DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5*

*No DHCPOFFERS received.*

*No working leases in persistent database - sleeping.*



I hope someone could help me !!! Thank you so much for you attention and 
help!!

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