Quel est l'état actuel de Centrino Advanced-N 6235 sur Ubuntu?
J'utilise un Cirrus 7 avec Ubuntu 17.10 avec (malheureusement) un Centrino Advanced-N 6235. Cet adaptateur sans fil ne fonctionne pas très bien, il a un temps de réaction très lent et je ne parviens pas à obtenir un débit supérieur à 600. KB/S où d’autres périphériques sur le même réseau gagnent facilement jusqu’à 5 Mo/s. J'ai trouvé plusieurs articles sur ce sujet:
réception sans fil faible de Centrino Advanced Centrino Advanced-N 6235
numéro de Lubuntu 13.10 Intel Corporation Centrino Advanced-N 6235 (rev-24)
débit du processeur Intel Centrino Advanced-N 6235
Mais ils sont vieux et font principalement référence à un ancien bogue du noyau, qui semble avoir été corrigé il y a des années: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1159145
Je me demande donc si cet adaptateur sans fil fonctionne sans problème. Est-ce un problème matériel ou logiciel, puis-je faire quelque chose pour améliorer la connexion?
Voici un exemple de sortie dsmg (j'ai changé l'adresse MAC):
Sudo dmesg | grep wlan0
[233696.907293] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[233696.943294] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[233696.950553] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=3)
[233696.971412] wlan0: associated
[233697.148133] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[234303.411322] wlan0: deauthenticated from e0:28:6d:30:13:4c (Reason: 2=PREV_AUTH_NOT_VALID)
[234306.669023] wlan0: authenticate with XX:28:6d:30:13:XX
[234306.671710] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[234306.740030] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[234306.741659] wlan0: authenticated
[234306.743528] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[234306.754636] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[234306.762087] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[234306.781035] wlan0: associated
[234306.833064] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[234963.247556] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[234977.040692] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[234977.446692] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[234977.742178] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[234983.631079] wlan0: authenticate with XX:28:6d:30:13:XX
[234983.633661] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[234983.647935] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[234983.649515] wlan0: authenticated
[234983.651185] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[234983.662128] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[234983.663729] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[234983.681553] wlan0: associated
[234983.681642] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[234983.741230] wlan0: Limiting TX power to 27 (30 - 3) dBm as advertised by XX:28:6d:30:13:XX
[236621.605584] wlan0: authenticate with e0:28:6d:30:13:4c
[236621.608725] wlan0: send auth to e0:28:6d:30:13:4c (try 1/3)
[236621.631390] wlan0: send auth to e0:28:6d:30:13:4c (try 2/3)
[236621.634509] wlan0: authenticated
[236621.636467] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[236621.672118] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[236621.677269] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=2)
[236621.697238] wlan0: associated
[236622.018362] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[236631.185506] wlan0: deauthenticated from e0:28:6d:30:13:4c (Reason: 2=PREV_AUTH_NOT_VALID)
[236634.316592] wlan0: authenticate with XX:28:6d:30:13:XX
[236634.319552] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[236634.436946] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[236634.446272] wlan0: send auth to XX:28:6d:30:13:XX (try 3/3)
[236634.447530] wlan0: authenticated
[236634.448951] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[236634.461017] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[236634.462678] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[236634.480750] wlan0: associated
[236634.539934] wlan0: Limiting TX power to 27 (30 - 3) dBm as advertised by XX:28:6d:30:13:XX
[237344.790317] wlan0: authenticate with XX:28:6d:30:13:XX
[237344.792735] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[237344.805029] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[237344.908714] wlan0: send auth to XX:28:6d:30:13:XX (try 3/3)
[237344.916829] wlan0: authentication with XX:28:6d:30:13:XX timed out
[237348.565955] wlan0: authenticate with e0:28:6d:30:13:4c
[237348.571036] wlan0: send auth to e0:28:6d:30:13:4c (try 1/3)
[237348.573630] wlan0: authenticated
[237348.576910] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[237348.611628] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[237348.616068] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=2)
[237348.636020] wlan0: associated
[237348.646800] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[237355.786883] wlan0: deauthenticated from e0:28:6d:30:13:4c (Reason: 2=PREV_AUTH_NOT_VALID)
[237359.024330] wlan0: authenticate with XX:28:6d:30:13:XX
[237359.027513] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[237359.037446] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[237359.038615] wlan0: authenticated
[237359.040669] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[237359.052525] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[237359.054652] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[237359.072555] wlan0: associated
[237359.132027] wlan0: Limiting TX power to 27 (30 - 3) dBm as advertised by XX:28:6d:30:13:XX
[237739.358617] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[237753.219112] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[237753.624920] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[237753.888248] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[237759.917539] wlan0: authenticate with XX:28:6d:30:13:XX
[237759.920045] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[237759.938618] wlan0: authenticated
[237759.940713] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[237759.951878] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[237759.959327] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[237759.977302] wlan0: associated
[237759.977369] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[237760.039421] wlan0: Limiting TX power to 27 (30 - 3) dBm as advertised by XX:28:6d:30:13:XX
[255142.566147] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[255155.687210] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[255156.085066] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[255156.181962] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[255162.095411] wlan0: authenticate with XX:28:6d:30:13:XX
[255162.097742] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[255162.124284] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[255162.125497] wlan0: authenticated
[255162.126288] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[255162.138552] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[255162.145925] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[255162.163629] wlan0: associated
[255162.163681] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[255162.217334] wlan0: Limiting TX power to 27 (30 - 3) dBm as advertised by XX:28:6d:30:13:XX
[265911.077667] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[265923.912257] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[265924.314049] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[265924.371327] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[265930.268754] wlan0: authenticate with XX:28:6d:30:13:XX
[265930.271147] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[265930.284924] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[265930.286114] wlan0: authenticated
[265930.286534] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[265930.299044] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[265930.306503] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[265930.324717] wlan0: associated
[265930.325206] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[265930.378405] wlan0: Limiting TX power to 27 (30 - 3) dBm as advertised by XX:28:6d:30:13:XX
[271013.727836] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[271026.951951] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[271027.357950] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[271027.410915] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[271033.366098] wlan0: authenticate with XX:28:6d:30:13:XX
[271033.368730] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[271033.395844] wlan0: authenticated
[271033.398253] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[271033.409441] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[271033.416957] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[271033.434932] wlan0: associated
[271033.435004] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[271033.497089] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[272762.239176] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[272775.666048] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[272776.067294] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[272776.117239] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[272838.239374] wlan0: authenticate with XX:28:6d:30:13:XX
[272838.241560] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[272838.272957] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[272838.275026] wlan0: authenticated
[272838.277163] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[272838.289537] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[272838.298572] wlan0: associate with XX:28:6d:30:13:XX (try 3/3)
[272838.309708] wlan0: association with XX:28:6d:30:13:XX timed out
[272841.443464] wlan0: authenticate with XX:28:6d:30:13:XX
[272841.445794] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[272841.973571] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[272842.997646] wlan0: send auth to XX:28:6d:30:13:XX (try 3/3)
[272843.989754] wlan0: authentication with XX:28:6d:30:13:XX timed out
[272847.703152] wlan0: authenticate with XX:28:6d:30:13:XX
[272847.705736] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[272847.796103] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[272847.798085] wlan0: authenticated
[272847.802088] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[272847.813819] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[272847.821237] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[272847.839254] wlan0: associated
[272847.839329] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[272847.890330] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[274485.409701] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[274499.016437] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[274499.418745] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[274499.489509] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[274505.623403] wlan0: authenticate with XX:28:6d:30:13:XX
[274505.625906] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[274505.717769] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[274505.719480] wlan0: authenticated
[274505.722457] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[274505.734346] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[274505.741845] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[274505.760225] wlan0: associated
[274505.760296] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[274505.812735] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[276263.823953] wlan0: disconnect from AP XX:28:6d:30:13:XX for new auth to e0:28:6d:30:13:4c
[276263.864757] wlan0: authenticate with e0:28:6d:30:13:4c
[276263.869263] wlan0: send auth to e0:28:6d:30:13:4c (try 1/3)
[276263.894125] wlan0: send auth to e0:28:6d:30:13:4c (try 2/3)
[276263.897166] wlan0: authenticated
[276263.897559] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[276263.939189] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[276263.943740] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=2)
[276263.965093] wlan0: associated
[276263.992147] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[276624.641168] wlan0: disconnect from AP e0:28:6d:30:13:4c for new auth to XX:28:6d:30:13:XX
[276624.679870] wlan0: authenticate with XX:28:6d:30:13:XX
[276624.682694] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[276624.801930] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[276624.810914] wlan0: send auth to XX:28:6d:30:13:XX (try 3/3)
[276624.818445] wlan0: authentication with XX:28:6d:30:13:XX timed out
[276624.982863] wlan0: authenticate with e0:28:6d:30:13:4c
[276624.994506] wlan0: send auth to e0:28:6d:30:13:4c (try 1/3)
[276625.108991] wlan0: send auth to e0:28:6d:30:13:4c (try 2/3)
[276625.131145] wlan0: send auth to e0:28:6d:30:13:4c (try 3/3)
[276625.138901] wlan0: authenticated
[276625.141010] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[276625.178807] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[276625.183263] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=2)
[276625.203002] wlan0: associated
[276625.257311] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[276635.871049] wlan0: deauthenticated from e0:28:6d:30:13:4c (Reason: 2=PREV_AUTH_NOT_VALID)
[276639.031276] wlan0: authenticate with XX:28:6d:30:13:XX
[276639.033974] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[276639.138661] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[276639.147762] wlan0: send auth to XX:28:6d:30:13:XX (try 3/3)
[276639.156383] wlan0: authentication with XX:28:6d:30:13:XX timed out
[276640.216800] wlan0: authenticate with e0:28:6d:30:13:4c
[276640.219983] wlan0: send auth to e0:28:6d:30:13:4c (try 1/3)
[276640.239414] wlan0: send auth to e0:28:6d:30:13:4c (try 2/3)
[276640.242444] wlan0: authenticated
[276640.245338] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[276640.279651] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[276640.284378] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=2)
[276640.304424] wlan0: associated
[276640.412464] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[277192.251810] wlan0: deauthenticating from e0:28:6d:30:13:4c by local choice (Reason: 3=DEAUTH_LEAVING)
[277205.451169] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[277205.861206] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[277205.927044] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[277211.877521] wlan0: authenticate with XX:28:6d:30:13:XX
[277211.880213] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[277211.954629] wlan0: authenticated
[277211.957132] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[277211.968471] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[277211.975972] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[277211.994133] wlan0: associated
[277211.994208] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[277212.055356] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[278405.085021] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[278418.475479] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[278418.877821] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[278418.944418] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[278424.847326] wlan0: authenticate with XX:28:6d:30:13:XX
[278424.849750] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[278424.932183] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[278424.933381] wlan0: authenticated
[278424.935313] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[278424.947366] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[278424.948981] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=2)
[278424.967788] wlan0: associated
[278424.967863] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[278425.025466] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[279823.410777] wlan0: disconnect from AP XX:28:6d:30:13:XX for new auth to e0:28:6d:30:13:4c
[279823.458072] wlan0: authenticate with e0:28:6d:30:13:4c
[279823.462374] wlan0: send auth to e0:28:6d:30:13:4c (try 1/3)
[279823.487570] wlan0: send auth to e0:28:6d:30:13:4c (try 2/3)
[279823.490366] wlan0: authenticated
[279823.493227] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[279823.528668] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[279823.536688] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=2)
[279823.556683] wlan0: associated
[279823.565251] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[279835.932630] wlan0: deauthenticated from e0:28:6d:30:13:4c (Reason: 2=PREV_AUTH_NOT_VALID)
[279836.240544] wlan0: authenticate with XX:28:6d:30:13:XX
[279836.245045] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[279836.318104] wlan0: authenticated
[279836.318548] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[279836.330566] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[279836.332309] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[279836.351027] wlan0: associated
[279836.418882] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[281949.920882] wlan0: deauthenticating from XX:28:6d:30:13:XX by local choice (Reason: 3=DEAUTH_LEAVING)
[281962.774607] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[281963.176701] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[281963.229034] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[281969.161146] wlan0: authenticate with XX:28:6d:30:13:XX
[281969.163385] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[281969.238973] wlan0: authenticated
[281969.241502] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[281969.254120] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[281969.256021] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[281969.274146] wlan0: associated
[281969.274203] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[281969.339422] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
[281995.444539] wlan0: disconnect from AP XX:28:6d:30:13:XX for new auth to e0:28:6d:30:13:4c
[281995.496295] wlan0: authenticate with e0:28:6d:30:13:4c
[281995.499374] wlan0: send auth to e0:28:6d:30:13:4c (try 1/3)
[281995.523310] wlan0: send auth to e0:28:6d:30:13:4c (try 2/3)
[281995.526364] wlan0: authenticated
[281995.529733] wlan0: associate with e0:28:6d:30:13:4c (try 1/3)
[281995.570090] wlan0: associate with e0:28:6d:30:13:4c (try 2/3)
[281995.575111] wlan0: RX AssocResp from e0:28:6d:30:13:4c (capab=0x1431 status=0 aid=3)
[281995.596125] wlan0: associated
[281995.672576] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by e0:28:6d:30:13:4c
[282357.921483] wlan0: disassociated from e0:28:6d:30:13:4c (Reason: 2=PREV_AUTH_NOT_VALID)
[282358.168335] wlan0: authenticate with XX:28:6d:30:13:XX
[282358.171174] wlan0: send auth to XX:28:6d:30:13:XX (try 1/3)
[282358.266305] wlan0: send auth to XX:28:6d:30:13:XX (try 2/3)
[282358.267972] wlan0: authenticated
[282358.269333] wlan0: associate with XX:28:6d:30:13:XX (try 1/3)
[282358.281038] wlan0: associate with XX:28:6d:30:13:XX (try 2/3)
[282358.282662] wlan0: RX AssocResp from XX:28:6d:30:13:XX (capab=0x1511 status=0 aid=1)
[282358.300939] wlan0: associated
[282358.360851] wlan0: Limiting TX power to 20 (23 - 3) dBm as advertised by XX:28:6d:30:13:XX
déconnecter de l'AP XX: 28: 6d: 30: 13: XX pour une nouvelle autorisation à e0: 28: 6d: 30: 13: 4c
Il semble que vous ayez deux SSID du même nom et que votre appareil est en itinérance parmi eux à la recherche d'une meilleure connexion. Cela ressemble à ma vieille petite amie!
Je soupçonne qu’il s’agit des segments 2,4 gHz et 5 gHz de votre routeur. Je suggère que vous les renommiez pour les différencier. Je suggère routeur2.4 et router5 ou quelque chose de similaire. Après tous les changements que je recommande, voyez quel segment offre la meilleure vitesse et respectez-le.
Veuillez vérifier les paramètres sans fil du routeur. WPA2-AES est préféré; pas tous WPA et WPA2 mode mixte et certainement pas TKIP. Deuxièmement, si votre routeur est capable de N vitesses, vous pouvez bénéficier d’une meilleure connectivité avec une largeur de canal de 20 MHz dans la bande des 2,4 GHz au lieu de la fréquence automatique 20/40 MHz, bien que cela puisse affecter les vitesses de N. J'ai aussi plus de chance avec un canal fixe, que ce soit 1, 6 ou 11, plutôt que la sélection automatique du canal. Assurez-vous également que le routeur n'est pas configuré pour utiliser uniquement N vitesses; Auto B, G et N est préféré. Après avoir apporté ces modifications, redémarrez le routeur.
Ensuite, je recommande que votre domaine de réglementation soit défini explicitement. Vérifiez le vôtre:
Sudo iw reg get
Si vous obtenez 00, il s'agit d'un paramètre unique. Trouvez le vôtre ici: http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 Réglez-le ensuite temporairement:
Sudo iw reg set IS
Bien sûr, remplacez votre code de pays si ce n'est l'Islande. Définissez-le en permanence:
Sudo nano /etc/default/crda
Changer la dernière ligne pour lire:
REGDOMAIN=IS
Relisez attentivement, enregistrez et fermez l'éditeur de texte.
Ensuite, assurez-vous de disposer du dernier firmware possible; vérifier:
Sudo dpkg -s linux-firmware
Nous espérons que vous avez 1.169.3. Si non, alors ouvrez un terminal et faites:
cd /tmp
wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.169.3_all.deb
Sudo dpkg -i linux*.deb
Après toutes ces modifications, redémarrez le routeur et l'ordinateur et dites-nous s'il y a une amélioration.