Wanted to thank you for the posts on testing the wireless network adapter dongles. Your post prompted me to order one of the ASUS USB-N10 Nano adapters.
I am a new FreeBSD / TrueOS user and had been wanting to try TrueOS.
I did a full install on a laptop and install did not find my wireless adapter.
For mine, after ordering the Asus USB-N10 Nano adapter and plugging it in it was not recognized by the OS.
I was able to get it to work after a bit of reading, including your post.
dmesg identified it as rtwn0 and using grep | rtwn0 the ASUS USB-N10 nano hardware was identified as RTL8188CUS which a search of 'FreeBSD RTL8188CUS driver' identifed as using the urtwn driver.
I added 'if_urtwn_load="YES"' to the /boot/loader.conf file and configured \etc\rc.conf by adding wlans_rtwn0="wlan0" and
then after running
sudo rc-service network restart followed by
I was able to see wlan0 in the netmanager GUI.
I experienced the same issue you posted with the wireless icon disappearing from the left bottom bar where the time / battery / speaker icons reside.
Were you ever able to resolve the issuer with your wireless icon disappearing?
I noticed from reading that appending an '&' to some of the command line commands like pc-mixer for example adds the icon, but I haven't located the comand line yet to add that to the Lumina desktop for the wireless icon.
Huge thank you for posting the info on the wireless dongles. It gave me a huge head start with a wireless dongle to start with.