I updated wl18xx firmware/packages in an attempt to reduce the high 
frequency of dropped WiFi connections. That didn't go smoothly and I had to 
take a few passes at it.

I now have no (WiFi) connectivity at all. I rebooted after the troublesome 
package upgrade and the wlan0 interface worked - but now it does not, 
despite many subsequent reboots (and days of trying to think what could 
have happened - but no action taken).

The only thing other than the package upgrade that was changed was removing 
some unneeded packages (reported by apt-get) using "*apt-get autoremove*"* - 
*and removal of some packages to free up eMMC space. I didn't document 
this, but my recollection is that the only packages removed were 

I have been able to access the BBBW using the USB interface for debugging. 
It seems the wlan0 interface is up but not active:

debian@BBB:~$ ifconfig -v wlan0

wlan0     Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx  


          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

debian@BBB:~$ sudo /opt/scripts/tools/version.sh





Rather than trying to bind the adapter or manually configure with an IP 
address, I'm looking to understand what has gone wrong to prevent the 
expected auto-configuration and acquisition of a valid IP address (which my 
router is configured to specify as the network DHCP server).

Ideas where to look next?

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