보안 WiFi 인증 없음

lenovo T400에 Linux Mint 17.2를 설치했습니다. Intel 5100 AGN 무선 카드가 설치되어 있습니다.

우리 대학에는 사용자 이름/비밀번호 기반 인증을 사용하는 보안되지 않은 게스트 무선 SSID와 WPA/WPA2 보안 SSID가 있습니다. 보안되지 않은 네트워크에는 쉽게 연결할 수 있지만 WPA 연결에는 전혀 연결할 수 없습니다. 내 비밀번호를 묻고 연결을 시도한 다음 다시 비밀번호를 묻는 식으로 진행됩니다.

이는 기계가 실행된 기간, 일시 중지 여부 등에 따라 달라지지 않습니다. 이 OS를 설치한 이후부터 그랬습니다.

안전하지 않은 연결을 끊고 보안 dmesg에 연결을 시도한 직후:

sp4rg0n@sp4rg0n-ThinkPad-T400 ~ $ dmesg
...
[ 2899.302943] wlan0: deauthenticating from 08:cc:68:cc:fd:51 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 2899.305487] cfg80211: Calling CRDA to update world regulatory domain
[ 2899.309223] cfg80211: World regulatory domain updated:
[ 2899.309227] cfg80211:  DFS Master region: unset
[ 2899.309229] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2899.309232] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2899.309234] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2899.309236] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2899.309238] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2899.309239] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2913.499595] wlan0: authenticate with 08:cc:68:cc:fd:5f
[ 2913.502680] wlan0: send auth to 08:cc:68:cc:fd:5f (try 1/3)
[ 2913.523336] wlan0: authenticated
[ 2913.524051] wlan0: associate with 08:cc:68:cc:fd:5f (try 1/3)
[ 2913.628054] wlan0: associate with 08:cc:68:cc:fd:5f (try 2/3)
[ 2913.629384] wlan0: RX AssocResp from 08:cc:68:cc:fd:5f (capab=0x101 status=12 aid=0)
[ 2913.629390] wlan0: 08:cc:68:cc:fd:5f denied association (code=12)
[ 2913.918053] wlan0: authenticate with 08:cc:68:cd:01:3f
[ 2913.922846] wlan0: send auth to 08:cc:68:cd:01:3f (try 1/3)
[ 2914.022154] wlan0: authenticated
[ 2914.024064] wlan0: associate with 08:cc:68:cd:01:3f (try 1/3)
[ 2914.025595] wlan0: RX AssocResp from 08:cc:68:cd:01:3f (capab=0x101 status=12 aid=0)
[ 2914.025602] wlan0: 08:cc:68:cd:01:3f denied association (code=12)
[ 2914.231147] wlan0: authenticate with 08:cc:68:cc:cd:3f
[ 2914.234561] wlan0: send auth to 08:cc:68:cc:cd:3f (try 1/3)
[ 2914.260298] wlan0: authenticated
[ 2914.260569] wlan0: waiting for beacon from 08:cc:68:cc:cd:3f
[ 2914.368066] wlan0: associate with 08:cc:68:cc:cd:3f (try 1/3)
[ 2914.370491] wlan0: RX AssocResp from 08:cc:68:cc:cd:3f (capab=0x111 status=0 aid=1)
[ 2914.373564] wlan0: associated
[ 2914.373890] cfg80211: Calling CRDA for country: US
[ 2914.377564] cfg80211: Regulatory domain changed to country: US
[ 2914.377573] cfg80211:  DFS Master region: unset
[ 2914.377578] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2914.377585] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm), (N/A)
[ 2914.377591] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm), (N/A)
[ 2914.377596] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 2914.377601] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 2914.377606] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 2914.377611] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm), (N/A)
[ 2914.377616] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 2939.005918] wlan0: deauthenticating from 08:cc:68:cc:cd:3f by local  choice (Reason: 3=DEAUTH_LEAVING)
[ 2939.009798] cfg80211: Calling CRDA to update world regulatory domain
[ 2939.018975] cfg80211: World regulatory domain updated:
[ 2939.018985] cfg80211:  DFS Master region: unset
[ 2939.018990] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2939.018997] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2939.019003] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2939.019008] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2939.019013] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2939.019018] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)

sp4rg0n@sp4rg0n-ThinkPad-T400 ~ $ lspci -nn | grep 0280
03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection [8086:4237]

FWIW Wi-Fi 관리자는 첫 번째 시도에서 CA 인증서가 누락되었다고 불평했습니다. 인증서 무시 및 선택이라는 두 가지 옵션을 제공합니다. 나는 그것을 무시했다.

문제가 무엇인지 아는 사람이 있습니까? 미리 감사드립니다.