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On my new desktop, I've put together a dual-boot with Windows 7 and Ubuntu 13.10. Because my desk is nowhere near any ethernet access, I added in a wifi adapter to the build.

The model is a Netis WF-2113 PCI-E adapter. As soon as Ubuntu was finished installing, I could see all the nearby wifi networks, including the one in my home. However, attempting to connect to the network (WPA2/Personal) fails, prompting for the password once again.

Before I continue, I'd like to reiterate: plugging in to a hard line for any purpose is not feasible, which is the reason I'm using a wifi card in the first place. (I would need 100+ ft of cable plus a pack of hooks to avoid any tripping hazards, and drilling through the walls to create proper outlets would not be permitted by the landlord.)

root@Brian-UB:~# iwconfig
eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any
          Mode:Managed Access Point: Not-Associated   Tx-Power=20 dBm
          Retry  long limit=7   RTS thr=2347 B   Fragment thr:off
          Encryption key:off
          Power Management:off

root@Brian-UB:~# iwlist wlan0 scan
wlan0     Scan completed :
          ... -- other hotspots omitted
          Cell 03 - Address: C0:83:0A:49:51:91
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=38/70  Signal level=-72 dBm
                    Encryption key:on
                    ESSID:"Team Noodle Arms"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=00000000085aacf9
                    Extra: Last beacon: 8ms ago
                    IE: Unknown: 00105465616D204E6F6F646C652041726D73
                    IE: Unknown: 010882848B0C12961824
                    IE: Unknown: 030106
                    IE: Unknown: 0706555320010B1B
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (!) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (!) : PSK
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
          ... -- other hotspots omitted

root@Brian-UB:~# rfkill list all
0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

The adapter works under W7, so the issue is not with the password or with a malfunctioning adapter.

share|improve this question
    
Can you, just for testing purposes, disable the password on your WiFi and see if you can connect then? –  drc Dec 16 '13 at 9:04
    
@drc, Just disabled the security on the network and tried to connect w/Ubuntu. Ubuntu tries to connect for several seconds, and then disconnects. No joy. :( –  Brian S Dec 29 '13 at 0:44

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