Re: The TP-Link TL-WN722N USB WiFi adapter ...

[Curt <curty@free.fr>]

On 2018-01-28, peter@easthope.ca <peter@easthope.ca> wrote:
> ... worked in Squeeze or Wheezy.  In Stretch, Network Manager fails to 
> report wlan0 automatically.  After wlan0 is specified in Perferences, 
> extant networks are visible.  Nevertheless, connection fails even with 
> authentication off in the router.
>
> peter@computer:~$ lsmod | grep ath
> ath9k_htc              61440  0
> ath9k_common           32768  1 ath9k_htc
> ath9k_hw              413696  2 ath9k_htc,ath9k_common
> ath                    24576  3 ath9k_htc,ath9k_hw,ath9k_common
> mac80211              548864  1 ath9k_htc
> cfg80211              446464  4 ath9k_htc,mac80211,ath,ath9k_common
> usbcore               184320  7 ath9k_htc,usbhid,usb_storage,ehci_hcd,uhci_hcd,u
> as,ehci_pci
>
> peter@computer:~$ ls /sys/class/net
> eth0  lo  wlan0
>
> This is consequent to the new interface identification scheme? Any 
> solution?  Ideas?
>
> Thanks,            ... Peter E.
>
>

Looking briefly I saw this bug:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=842422

Two workarounds:

 /etc/NetworkManager/NetworkManager.conf

adding

 [device]
 wifi.scan-rand-mac-address=no

to 

 /etc/NetworkManager/NetworkManager.conf

or kernel parameter
 
 net.ifnames=0

at boot.

Maybe not pertinent.
-- 
“True terror is to wake up one morning and discover that your high school class
is running the country.” – Kurt Vonnegut