F21 - WiFi not connecting

[Robert Moskowitz]

I get home from a fun ride on Amtrak - Chicago to Detroit, 2 hours 
delayed to a plowed in car (importance here is I was on the Amtrak 
WiFi).  Came out of suspend mode and connected to my WiFi with no problem.

Then no WiFi.  It will not connect.  I tried restarting NetworkManager, 
the interface.  Both restarted the authentication which failed.  I 
pulled out the trusty ethernet cable to get connected.  I am current on 
patches.  Here is what journalctl shows me for one of the failed 
connections:

Feb 02 10:11:07 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): supplicant interface state: disconnected -> scanning
Feb 02 10:11:08 lx120e.htt-consult.com kernel: wlp4s0: authenticate with 
c8:3a:35:fa:5c:58
Feb 02 10:11:08 lx120e.htt-consult.com kernel: wlp4s0: direct probe to 
c8:3a:35:fa:5c:58 (try 1/3)
Feb 02 10:11:08 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): supplicant interface state: scanning -> authenticating
Feb 02 10:11:08 lx120e.htt-consult.com kernel: wlp4s0: direct probe to 
c8:3a:35:fa:5c:58 (try 2/3)
Feb 02 10:11:08 lx120e.htt-consult.com kernel: wlp4s0: direct probe to 
c8:3a:35:fa:5c:58 (try 3/3)
Feb 02 10:11:08 lx120e.htt-consult.com kernel: wlp4s0: authentication 
with c8:3a:35:fa:5c:58 timed out
Feb 02 10:11:08 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): supplicant interface state: authenticating -> disconnected
Feb 02 10:11:19 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): supplicant interface state: disconnected -> scanning
Feb 02 10:11:20 lx120e.htt-consult.com kernel: wlp4s0: authenticate with 
c8:3a:35:fa:5c:58
Feb 02 10:11:20 lx120e.htt-consult.com kernel: wlp4s0: direct probe to 
c8:3a:35:fa:5c:58 (try 1/3)
Feb 02 10:11:20 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): supplicant interface state: scanning -> authenticating
Feb 02 10:11:20 lx120e.htt-consult.com kernel: wlp4s0: direct probe to 
c8:3a:35:fa:5c:58 (try 2/3)
Feb 02 10:11:20 lx120e.htt-consult.com kernel: wlp4s0: direct probe to 
c8:3a:35:fa:5c:58 (try 3/3)
Feb 02 10:11:20 lx120e.htt-consult.com kernel: wlp4s0: authentication 
with c8:3a:35:fa:5c:58 timed out
Feb 02 10:11:20 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): supplicant interface state: authenticating -> disconnected
Feb 02 10:11:21 lx120e.htt-consult.com NetworkManager[6995]: <warn>  
Activation (wlp4s0/wireless): association took too long, failing activation.
Feb 02 10:11:21 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): device state change: config -> failed (reason 
'ssid-not-found') [50 120 53]
Feb 02 10:11:21 lx120e.htt-consult.com NetworkManager[6995]: <info>  
Disabling autoconnect for connection 'HTTNET'.
Feb 02 10:11:21 lx120e.htt-consult.com NetworkManager[6995]: <warn>  
Activation (wlp4s0) failed for connection 'HTTNET'
Feb 02 10:11:21 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): device state change: failed -> disconnected (reason 'none') 
[120 30 0]
Feb 02 10:11:21 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): deactivating device (reason 'none') [0]
Feb 02 10:11:21 lx120e.htt-consult.com firewalld[542]: 2015-02-02 
10:11:21 ERROR: UNKNOWN_INTERFACE: 'wlp4s0' is not in any zone
Feb 02 10:11:22 lx120e.htt-consult.com NetworkManager[6995]: <info>  
(wlp4s0): supplicant interface state: disconnected -> inactive

Any idea where to troubleshoot this one?

It won't connect to my smartphone MiFi either.  Tried that.  And at 
first my SSID disappeared from the list of found SSIDs.  I checked from 
my phone which had no problem connecting to my local WiFi, so it is the 
F21 system.  After restarting NetworkManager, my SSID again appeared in 
the list.