Hope this helps someone:
I had Xubuntu 15.04, and the steps in Post #118 worked for me.
Upon upgrading to Xubuntu 15.10, the WiFi card was no longer recognized. Retrying the steps in Post #118 resulted in error messages.
Following the steps in Post #81 and #90 did fix my Wifi.
Thank you all of you for your help!
Hope this helps someone:
I had Xubuntu 15.04, and the steps in Post #118 worked for me.
Upon upgrading to Xubuntu 15.10, the WiFi card was no longer recognized. Retrying the steps in Post #118 resulted in error messages.
Following the steps in Post #81 and #90 did fix my Wifi.
Thank you all of you for your help!