Comment 4 for bug 1164567

Are you sure the network is open? Seems to me like it's failing to auth due to cached auth data:
#define WLAN_REASON_PREV_AUTH_NOT_VALID 2

Apr 4 15:19:15 ubuntu-gnome NetworkManager[1958]: <info> (wlan0): supplicant interface state: completed -> authenticating
Apr 4 15:19:15 ubuntu-gnome kernel: [ 131.450269] wlan0: direct probe to 10:8c:cf:b0:0a:38 (try 1/3)
Apr 4 15:19:15 ubuntu-gnome kernel: [ 131.653202] wlan0: direct probe to 10:8c:cf:b0:0a:38 (try 2/3)
Apr 4 15:19:15 ubuntu-gnome kernel: [ 131.857096] wlan0: direct probe to 10:8c:cf:b0:0a:38 (try 3/3)
Apr 4 15:19:15 ubuntu-gnome kernel: [ 132.061008] wlan0: authentication with 10:8c:cf:b0:0a:38 timed out
Apr 4 15:19:15 ubuntu-gnome NetworkManager[1958]: <info> (wlan0): supplicant interface state: authenticating -> disconnected
Apr 4 15:19:15 ubuntu-gnome NetworkManager[1958]: <info> (wlan0): supplicant interface state: disconnected -> scanning
Apr 4 15:19:16 ubuntu-gnome wpa_supplicant[2822]: wlan0: SME: Trying to authenticate with 10:8c:cf:b0:0a:37 (SSID='IT-ology-Events' freq=5805 MHz)
Apr 4 15:19:16 ubuntu-gnome kernel: [ 132.334798] wlan0: deauthenticating from 8c:b6:4f:c9:a7:c7 by local choice (reason=2)
Apr 4 15:19:16 ubuntu-gnome kernel: [ 132.337091] wlan0: authenticate with 10:8c:cf:b0:0a:37
Apr 4 15:19:16 ubuntu-gnome kernel: [ 132.382996] wlan0: send auth to 10:8c:cf:b0:0a:37 (try 1/3)
Apr 4 15:19:16 ubuntu-gnome NetworkManager[1958]: <info> (wlan0): supplicant interface state: scanning -> authenticating

That said, it seems like there are further issues with connecting; direct probes fail which may indicate bad signal.

Additionally, you may want to try disabling 11n; which may help:

sudo rmmod iwlwifi
sudo modprobe iwlwifi 11n_disable=1

Or try to change regulatory domain:

sudo iw reg set US

And try to connect again, see if either changes improves the situation.

Thanks!