In my logs, I see the message: "...aborting authentication ...by local choice (Reason: 3=DEAUTH_LEAVING)" (I've listed below the relevant portion of the log file, since the logs above do not include this particular error).
The solution posted in comment #1 (https://bugs.launchpad.net/ubuntu/+source/network- manager/+bug/1681513/comments/1) worked for me... $ sudo nano /etc/NetworkManager/NetworkManager.conf # Append... - - - - - - - - - - - - - - - - - - - - [Device] wifi.scan-rand-mac-address=no - - - - - - - - - - - - - - - - - - - - $ sudo service network-manager restart I did not need to install dnsmasq-base, as suggested in comment #24 (https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1681513/comments/24). What is the purpose of installing this? - - - - - - - - - - - - - - - - - - - - SYSTEM INFO - - - - - - - - - - - - - - - - - - - - Linux RS001 4.10.0-22-generic #24-Ubuntu SMP Mon May 22 17:43:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 17.04 Release: 17.04 Codename: zesty - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOG - - - - - - - - - - - - - - - - - - - - Jun 19 19:20:42 MY_COMPUTER NetworkManager[724]: <info> [1497914442.1301] device (wlx00227540404a): supplicant interface state: disconnected -> scanning Jun 19 19:20:43 MY_COMPUTER wpa_supplicant[855]: wlx00227540404a: SME: Trying to authenticate with b4:75:0e:69:96:af (SSID='MY_WIFI' freq=2462 MHz) Jun 19 19:20:43 MY_COMPUTER kernel: [ 3001.130115] wlx00227540404a: authenticate with b4:75:0e:69:96:af Jun 19 19:20:43 MY_COMPUTER kernel: [ 3001.209885] wlx00227540404a: send auth to b4:75:0e:69:96:af (try 1/3) Jun 19 19:20:43 MY_COMPUTER NetworkManager[724]: <info> [1497914443.7071] device (wlx00227540404a): supplicant interface state: scanning -> authenticating Jun 19 19:20:43 MY_COMPUTER kernel: [ 3001.231002] wlx00227540404a: authenticated Jun 19 19:20:45 MY_COMPUTER kernel: [ 3003.003601] wlx00227540404a: aborting authentication with b4:75:0e:69:96:af by local choice (Reason: 3=DEAUTH_LEAVING) Jun 19 19:20:45 MY_COMPUTER NetworkManager[724]: <warn> [1497914445.4980] device (wlx00227540404a): Activation: (wifi) association took too long, failing activation Jun 19 19:20:45 MY_COMPUTER NetworkManager[724]: <info> [1497914445.4980] device (wlx00227540404a): state change: config -> failed (reason 'ssid-not-found') [50 120 53] Jun 19 19:20:45 MY_COMPUTER NetworkManager[724]: <info> [1497914445.4984] manager: NetworkManager state is now DISCONNECTED Jun 19 19:20:45 MY_COMPUTER NetworkManager[724]: <warn> [1497914445.5053] device (wlx00227540404a): Activation: failed for connection 'MY_WIFI 1' Jun 19 19:20:45 MY_COMPUTER NetworkManager[724]: <info> [1497914445.5111] device (wlx00227540404a): state change: failed -> disconnected (reason 'none') [120 30 0] Jun 19 19:20:45 MY_COMPUTER wpa_supplicant[855]: wlx00227540404a: CTRL-EVENT-DISCONNECTED bssid=b4:75:0e:69:96:af reason=3 locally_generated=1 Jun 19 19:20:45 MY_COMPUTER kernel: [ 3003.063699] IPv6: ADDRCONF(NETDEV_UP): wlx00227540404a: link is not ready Jun 19 19:20:45 MY_COMPUTER NetworkManager[724]: <info> [1497914445.9519] device (wlx00227540404a): set-hw-addr: set MAC address to XX:XX:XX:XX:XX:XX (scanning) Jun 19 19:20:46 MY_COMPUTER kernel: [ 3003.775904] IPv6: ADDRCONF(NETDEV_UP): wlx00227540404a: link is not ready Jun 19 19:20:46 MY_COMPUTER NetworkManager[724]: <warn> [1497914446.2947] sup-iface[0x558e6b4676e0,wlx00227540404a]: connection disconnected (reason -3) Jun 19 19:20:46 MY_COMPUTER NetworkManager[724]: <info> [1497914446.2958] device (wlx00227540404a): supplicant interface state: authenticating -> disconnected - - - - - - - - - - - - - - - - - - - - -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1681513 Title: Ubuntu 17.04/17.10: New feature in NetworkManager stops several WiFi adapters from working (MAC Address Randomization issue) Status in network-manager package in Ubuntu: Confirmed Bug description: According to https://blogs.gnome.org/thaller/2016/08/26/mac-address-spoofing-in-networkmanager-1-4-0/ there is a new privacy feature in the new version of NetworkManager. This privacy feature can cause some USB WiFi adapters to stop working while they used to work with older versions of NetworkManager (Ubuntu 16.10 or older). The purpose of this privacy feature is to get your computer to report a new random MAC address whenever you connect to a WiFi network. This privacy feature is especially useful when you connect to public WiFi networks, so that the operators cannot identify you when you connect multiple times. The downside of this privacy feature is that some USB WiFi adapters misbehave when NetworkManager tries to change their MAC address repeatedly. The result is that those USB WiFi adapters cannot connect anymore to the WiFi network. Original report follows: My Panda USB wi-fi adapter works just fine on 16.10, but when I try to connect to my wi-fi router in 17.04, GNOME network manager reports "Connection failed." I did some tinkering, and noticed that my MAC address for my wifi adapter, according to GNOME, is DIFFERENT every time I make it forget my wifi settings and try to reconnect. Weird, right? Any leads on a possible fix or work-around? I'm running the latest beta of Ubuntu GNOME 17.04, kernel 4.10.0-19-generic, GNOME 3.24.0. https://blogs.gnome.org/thaller/2016/08/26/mac-address-spoofing-in- networkmanager-1-4-0/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1681513/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp