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.