I can't see anything out of place, but here's some suggestions.

On Saturday 21 Sep 2013 16:08:36 Bruce Hill wrote:

> peter ~ # cat /etc/wpa_supplicant/wpa_supplicant.conf
> ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=wheel
> #ap_scan=0
> #update_config=1
> 
> network={
>       ssid="0024A5F5271E"
>       #psk="<munged>"
>       psk=<munged>
>         scan_ssid=1
>         proto=WPA2

Change this to:

                proto=RSN


>         key_mgmt=WPA-PSK
>         group=CCMP TKIP

If your access point can do CCMP, your don't need TKIP


>         pairwise=CCMP TKIP

Ditto.


> 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP group default qlen 1000 link/ether 94:44:52:de:38:44 brd
> ff:ff:ff:ff:ff:ff

I know that this says wlan0 is up, but could the error below be because it is 
disabled at the hardware?


> NB: To ssh into peter from baruch and get this info, I had to del net.wlan0
> from the default runlevel. Otherwise, I couldn't get sshd to start:
> 
> Sep 21 10:01:05 peter kernel:    4.598076] systemd-udevd[1214]: starting
> version 204 Sep 21 10:01:05 peter kernel: [    5.211658] r8712u: module is
> from the staging directory, the quality is unknown, you have been warned.
> Sep 21 10:01:05 peter kernel: [    5.211965] r8712u: Staging version Sep
> 21 10:01:05 peter kernel: [    5.211976] r8712u: register
> rtl8712_netdev_ops to netdev_ops Sep 21 10:01:05 peter kernel: [   
> 5.211980] usb 1-2: r8712u: USB_SPEED_HIGH with 4 endpoints Sep 21 10:01:05
> peter kernel: [    5.212463] usb 1-2: r8712u: Boot from EFUSE: Autoload OK
> Sep 21 10:01:05 peter kernel: [    5.933140] usb 1-2: r8712u: CustomerID =
> 0x0000 Sep 21 10:01:05 peter kernel: [    5.933145] usb 1-2: r8712u: MAC
> Address from efuse = 94:44:52:de:38:44 Sep 21 10:01:05 peter kernel: [   
> 5.933147] usb 1-2: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
> Sep 21 10:01:05 peter kernel: [    5.933232] usbcore: registered new
> interface driver r8712u Sep 21 10:01:05 peter kernel: [    7.116650]
> Adding 1951860k swap on /dev/sda5.  Priority:-1 extents:1 across:1951860k
> Sep 21 10:01:05 peter kernel: [    7.153107] XFS (sda2): Mounting
> Filesystem Sep 21 10:01:05 peter kernel: [    7.295342] XFS (sda2): Ending
> clean mount Sep 21 10:01:05 peter kernel: [    7.330984] XFS (sda3):
> Mounting Filesystem Sep 21 10:01:05 peter kernel: [    7.469806] XFS
> (sda3): Ending clean mount Sep 21 10:01:05 peter crond[1681]:
> /usr/sbin/crond 4.5 dillon's cron daemon, started with loglevel notice Sep
> 21 10:01:05 peter /usr/sbin/gpm[1694]: *** info [daemon/startup.c(136)]:
> Sep 21 10:01:05 peter /usr/sbin/gpm[1694]: Started gpm successfully.
> Entered daemon mode. Sep 21 10:01:06 peter kernel: [   10.118645] r8712u
> 1-2:1.0 wlan0: 1 RCR=0x153f00e Sep 21 10:01:06 peter kernel: [  
> 10.119365] r8712u 1-2:1.0 wlan0: 2 RCR=0x553f00e Sep 21 10:01:06 peter
> kernel: [   10.469578] r8169 0000:01:00.0 eth0: link down Sep 21 10:01:06
> peter kernel: [   10.469589] r8169 0000:01:00.0 eth0: link down Sep 21
> 10:01:06 peter /etc/init.d/net.wlan0[1925]: start-stop-daemon: failed to
> start `/usr/sbin/wpa_supplicant' Sep 21 10:01:06 peter
> /etc/init.d/net.wlan0[1850]: ERROR: net.wlan0 failed to start Sep 21

Does 'rfkill list' confirm that the wlan0 hardware is switched on?

-- 
Regards,
Mick

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