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?


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SYSTEM INFO
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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
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LOG
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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
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-- 
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Bugs, which is subscribed to 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)

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