Mon problème est que je ne peux pas me connecter à certaines WiFis alors que d'autres fonctionnent. Tout fonctionnait bien il y a une semaine. Le hotspot mobile créé par mon téléphone fonctionne toujours bien.
Ce problème est d'autant plus fréquent que je mets fréquemment mon ordinateur portable en veille, au lieu de l'éteindre. J'ai vérifié la question Le réseau sans fil ne fonctionne pas après une reprise dans Ubuntu 14.04 mais cela n'a pas aidé.
Je serais reconnaissant de toute aide à ce sujet, y compris des indications sur les journaux, etc. qui pourraient fournir davantage d'informations.
Ceci dit, désolé pour le titre vague, s'il vous plaît n'hésitez pas à éditer pour clarification.
Que se passe-t-il exactement ?
- Je (re)commence.
- L'icône du gestionnaire de réseau montre un WiFi connecté.
- Les notifications suivantes s'affichent en succession rapide :
- mon wifi : Connexion mon wifi désactivé
- Interface sans fil (wlan0) : Aucun secret n'a été fourni
- La connexion s'interrompt, le gestionnaire de réseau affiche l'icône "recherche", puis "connexion".
- Plusieurs tentatives (~3) ont lieu. Chacune d'entre elles affiche les deux notifications suivantes :
- mon wifi : Connexion mon wifi désactivé
- Interface sans fil (wlan0) : La configuration IP n'était pas disponible.
- Après plusieurs tentatives, le gestionnaire de réseau affiche un point d'interrogation et abandonne.
Matériel :
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
...Bûches
Extrait de dmesg qui montre la déconnexion d'un wifi qui fonctionne, la connexion à, l'échec et la reconnexion à celui qui fonctionne.
[ 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
