The built in wireless on teh Dell Inspiron 9300 suddenly stopped working.  
Having poked around a bit with wicd and network-manager (not simultaneously), 
I am checkinh whether the problem is sudden hardware failure.  I plugged in a 
USB network card.

Here is what I get:

sarah@debian-wheezy:~$ lsusb
Bus 001 Device 003: ID 0b05:17ab ASUSTek Computer, Inc. USB-N13 802.11n 
Network Adapter (rev. B1) [Realtek RTL8192CU]
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 003: ID 1c4f:0003 SiGma Micro HID controller
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 1631:5002 Good Way Technology
Bus 002 Device 002: ID 1631:5400 Good Way Technology
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
sarah@debian-wheezy:~$

sarah@debian-wheezy:~$ grep wifi /proc/modules
rtlwifi 45511 2 rtl8192cu,rtl_usb, Live 0xf829b000
mac80211 425575 3 rtl8192cu,rtl_usb,rtlwifi, Live 0xf8a02000
cfg80211 350041 4 rtlwifi,mac80211,ipw2200,libipw, Live 0xf8313000
sarah@debian-wheezy:~$

But:
sarah@debian-wheezy:~$ /sbin/ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:14:22:e7:6f:21
          inet addr:192.168.0.9  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::214:22ff:fee7:6f21/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:679 errors:0 dropped:3 overruns:0 frame:0
          TX packets:522 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:100380 (98.0 KiB)  TX bytes:72694 (70.9 KiB)
          Interrupt:18

eth1      Link encap:Ethernet  HWaddr 00:16:6f:00:3a:b3
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:7 errors:17 dropped:17 overruns:0 frame:0
          TX packets:79 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:945 (945.0 B)  TX bytes:14187 (13.8 KiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:84 errors:0 dropped:0 overruns:0 frame:0
          TX packets:84 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:22493 (21.9 KiB)  TX bytes:22493 (21.9 KiB)

sarah@debian-wheezy:~$ 

Where eth1 is the on-board card.

Where next?

With the on-board wifi card, I have tried DHCP and static IP.  It reports 
failure at the authentication stage.  I have checked and rechecked both the 
MAC address on the router and the passphrase entered in the laptop.  Both are 
fine.  As I say, it failed suddenly, at the client's house, and she does not 
use MAC address identification.  The wireless worked immediately after the 
upgrade.  I have tried Fn-F2. 

As I say, where next.

I have no objection to e/n/i, in fcat I prefer it, but this is a laptop.  It 
must be able to roam.  So I have no idea where to start!

Lisi

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