wi-fi with beaglebone black

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1

root@beaglebone:~# iwconfig
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off

lo no wireless extensions.

eth0 no wireless extensions.

usb0 no wireless extensions.

can0 no wireless extensions.

can1 no wireless extensions.

I have modified /etc/network/interfaces with my network’s ssid and password, it looks like this:

GNU nano 2.2.6 File: /etc/network/interfaces
#hwaddress ether DE:AD:BE:EF:CA:FE

The secondary network interface

#auto eth1
#iface eth1 inet dhcp

# WiFi Example
auto wlan0
iface wlan0 inet dhcp
wpa-ssid "homeNet"
wpa-psk "h0mes1stem5"

Ethernet/RNDIS gadget (g_ether)

Used by: /opt/scripts/boot/autoconfigure_usb0.sh

iface usb0 inet static
address 192.168.7.2
netmask 255.255.255.252
network 192.168.7.0
gateway 192.168.7.1

but after running “ifup wlan0”, I get this:

root@beaglebone:~# 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/wlan0/00:0c:43:01:0a:7d
Sending on LPF/wlan0/00:0c:43:01:0a:7d
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
No DHCPOFFERS received.
No working leases in persistent database - sleeping.

Any ideas on how to fix this?

2

On Mon, 18 Jan 2016 03:02:00 -0800 (PST), Chibueze Elisha
<ek.chibueze@gmail.com> declaimed the
following:

Listening on LPF/wlan0/00:0c:43:01:0a:7d
Sending on LPF/wlan0/00:0c:43:01:0a:7d
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
No DHCPOFFERS received.
No working leases in persistent database - sleeping.

Any ideas on how to fix this?

  Off-hand -- make sure your router is configured as a DHCP server AND
has available IPs to hand out (it may be DHCP, but if it was configured to
only use a pool of, say, 5 IPs and you have other devices on the system it
won't have any IPs to pass to the BBB)

  My router currently shows four cabled and five wireless leases -- which
would go up by one each if I turn on the TV and other printer. It is
currently configured to only allow 20 "users".