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My wireless adapter detects my wifi network, but when I attempt to connect by entering the key, it attempts the connection for a minute and then fails. It was working fine until an update about a week ago.

~$ sudo lshw -c network
  *-network               
       description: Wireless interface
       product: PRO/Wireless 5100 AGN [Shiloh] Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 00
       serial: 00:24:d6:4d:ad:18
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-38-generic firmware=8.83.5.1 build 33692 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:47 memory:dc100000-dc101fff
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