더 이상 일부 WiFi에 연결할 수 없습니다.

내 문제는 다른 WiFi가 여전히 작동하는 동안 일부 WiFi에 연결할 수 없다는 것입니다. 일주일 전에 모든 것이 잘 작동했습니다. 내 휴대폰에서 만든 모바일 핫스팟이 여전히 잘 작동합니다.

이 문제는 자주 노트북을 종료하는 대신 절전 모드로 보내기 때문에 더 많이 발생합니다. Ubuntu 14.04에서 다시 시작한 후 무선 네트워킹이 작동하지 않는다는 질문을 확인 했지만 도움이되지 않았습니다.

로그 등이 더 많은 통찰력을 제공 할 수있는 포인터를 포함하여 이것에 대한 도움을 주시면 감사하겠습니다.

즉, 모호한 제목에 대해 죄송합니다. 설명을 위해 자유롭게 편집하십시오.

정확히 무슨 일이

1. 나는 (다시) 시작합니다.
2. 네트워크 관리자 아이콘은 연결된 WiFi를 표시합니다.
3. 다음 알림이 빠르게 연속적으로 표시됩니다.
   • 내 Wi-Fi : 연결 내 Wi-Fi 비활성화
   • 무선 인터페이스 (wlan0) : 비밀이 제공되지 않았습니다.
4. 연결이 끊어지고 네트워크 관리자가 "검색 중"을 표시 한 다음 "연결 중"아이콘이 표시됩니다.
5. 몇 번의 재시도 (~ 3)가 발생합니다. 각각은 다음 두 가지 알림을 표시합니다.
   • 내 Wi-Fi : 연결 내 Wi-Fi 비활성화
   • 무선 인터페이스 (wlan0) : IP 구성을 사용할 수 없습니다.
6. 재시도 후 네트워크 관리자는 물음표를 표시하고 포기합니다.

하드웨어:

Lenovo Thinkpad T540p

$ sudo lshw -c network
    *-network
           description: Wireless interface
           product: Wireless 7260
           vendor: Intel Corporation
           physical id: 0
           bus info: pci@0000:04:00.0
           logical name: wlan0
           version: bb
           serial: 5c:c5:d4:e0:1c:94
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=iwlwifi driverversion=3.16.0-52-generic firmware=25.228.9.0 ip=192.168.43.77 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
           resources: irq:47 memory:f2800000-f2801fff
    ...

로그

dmesg작동중인 Wi-Fi 연결 해제,에 연결, 실패 및 다시 연결하는 것을 보여주는 발췌문입니다 .

[ 1916.725149] wlan0: deauthenticating from 80:37:73:da:06:c0 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1916.740742] cfg80211: Calling CRDA to update world regulatory domain
[ 1916.743159] cfg80211: World regulatory domain updated:
[ 1916.743162] cfg80211:  DFS Master region: unset
[ 1916.743163] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1916.743166] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1916.743169] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1916.743171] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1916.743172] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1916.743173] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1916.743184] cfg80211: Calling CRDA for country: DE
[ 1916.744992] cfg80211: Regulatory domain changed to country: DE
[ 1916.744994] cfg80211:  DFS Master region: unset
[ 1916.744995] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1916.744997] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1916.744998] cfg80211:   (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1916.744999] cfg80211:   (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
[ 1916.745000] cfg80211:   (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm), (0 s)
[ 1916.745002] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 1919.554137] wlan0: authenticate with 80:37:73:da:06:c0
[ 1919.556786] wlan0: send auth to 80:37:73:da:06:c0 (try 1/3)
[ 1919.558598] wlan0: authenticated
[ 1919.562481] wlan0: associate with 80:37:73:da:06:c0 (try 1/3)
[ 1919.566024] wlan0: RX AssocResp from 80:37:73:da:06:c0 (capab=0x411 status=0 aid=2)
[ 1919.567199] wlan0: associated
[ 1921.188286] wlan0: deauthenticating from 80:37:73:da:06:c0 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1921.191810] cfg80211: Calling CRDA to update world regulatory domain
[ 1921.196341] cfg80211: World regulatory domain updated:
[ 1921.196343] cfg80211:  DFS Master region: unset
[ 1921.196345] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1921.196347] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1921.196348] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1921.196349] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1921.196350] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1921.196351] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1921.196500] cfg80211: Calling CRDA for country: DE
[ 1921.198385] cfg80211: Regulatory domain changed to country: DE
[ 1921.198388] cfg80211:  DFS Master region: unset
[ 1921.198388] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1921.198390] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1921.198391] cfg80211:   (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1921.198392] cfg80211:   (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
[ 1921.198393] cfg80211:   (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm), (0 s)
[ 1921.198394] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 1924.652612] wlan0: authenticate with 02:1a:11:fb:34:fc
[ 1924.655299] wlan0: send auth to 02:1a:11:fb:34:fc (try 1/3)
[ 1924.657106] wlan0: authenticated
[ 1924.660085] wlan0: associate with 02:1a:11:fb:34:fc (try 1/3)
[ 1924.667085] wlan0: RX AssocResp from 02:1a:11:fb:34:fc (capab=0x411 status=0 aid=1)
[ 1924.667930] wlan0: associated
[ 1924.667980] cfg80211: Calling CRDA for country: DE
[ 1924.669881] cfg80211: Regulatory domain changed to country: DE
[ 1924.669884] cfg80211:  DFS Master region: unset
[ 1924.669885] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1924.669887] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1924.669888] cfg80211:   (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1924.669890] cfg80211:   (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
[ 1924.669891] cfg80211:   (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm), (0 s)
[ 1924.669892] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 1924.687721] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by 02:1a:11:fb:34:fc
[ 1924.700790] wlan0: deauthenticating from 02:1a:11:fb:34:fc by local choice (Reason: 2=PREV_AUTH_NOT_VALID)
[ 1924.710385] wlan0: authenticate with 02:1a:11:fb:34:fc
[ 1924.712791] wlan0: send auth to 02:1a:11:fb:34:fc (try 1/3)
[ 1924.713015] cfg80211: Calling CRDA to update world regulatory domain
[ 1924.714585] wlan0: authenticated
[ 1924.714660] cfg80211: World regulatory domain updated:
[ 1924.714663] cfg80211:  DFS Master region: unset
[ 1924.714665] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1924.714667] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1924.714668] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1924.714669] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1924.714670] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1924.714672] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1924.714680] cfg80211: Calling CRDA for country: DE
[ 1924.716136] wlan0: associate with 02:1a:11:fb:34:fc (try 1/3)
[ 1924.716148] cfg80211: Regulatory domain changed to country: DE
[ 1924.716150] cfg80211:  DFS Master region: unset
[ 1924.716151] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1924.716152] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1924.716153] cfg80211:   (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1924.716155] cfg80211:   (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
[ 1924.716155] cfg80211:   (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm), (0 s)
[ 1924.716156] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 1924.723515] wlan0: RX AssocResp from 02:1a:11:fb:34:fc (capab=0x411 status=0 aid=1)
[ 1924.724258] wlan0: associated
[ 1924.724293] cfg80211: Calling CRDA for country: DE
[ 1924.725783] cfg80211: Regulatory domain changed to country: DE
[ 1924.725786] cfg80211:  DFS Master region: unset
[ 1924.725787] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1924.725789] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1924.725790] cfg80211:   (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1924.725792] cfg80211:   (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
[ 1924.725793] cfg80211:   (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm), (0 s)
[ 1924.725794] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 1924.793764] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by 02:1a:11:fb:34:fc