我最近在我的戴尔 Inspiron 15R (N5110) 上安装了 ubuntu Mate。之前我运行的是 ubuntu + unity。安装后我的无线网无法连接到 wifi（以太网可以连接）。我尝试搜索了很多论坛，但找不到任何解决方案，如果可能的话请帮忙。
psn13147是我的 wifi ESSID。我运行了在某个 ubuntu 论坛上找到的无线诊断脚本，并输入了可能相关的部分。如果需要任何其他输出，请告诉我。
##### dmesg #############################
[ 103.227180] wlp9s0: authenticate with <MAC 'psn13147' [AC2]>
[ 103.230578] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 1/3)
[ 103.242411] wlp9s0: authenticated
[ 103.244663] wlp9s0: associate with <MAC 'psn13147' [AC2]> (try 1/3)
[ 103.251528] wlp9s0: RX AssocResp from <MAC 'psn13147' [AC2]> (capab=0x411 status=0 aid=4)
[ 103.263182] wlp9s0: associated
[ 103.263298] IPv6: ADDRCONF(NETDEV_CHANGE): wlp9s0: link becomes ready
[ 106.499415] wlp9s0: deauthenticated from <MAC 'psn13147' [AC2]> (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[ 107.015821] wlp9s0: authenticate with <MAC 'psn13147' [AC2]>
[ 107.017287] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 1/3)
[ 107.026903] wlp9s0: authenticated
[ 107.028421] wlp9s0: associate with <MAC 'psn13147' [AC2]> (try 1/3)
[ 107.063694] wlp9s0: associate with <MAC 'psn13147' [AC2]> (try 2/3)
[ 107.098165] wlp9s0: associate with <MAC 'psn13147' [AC2]> (try 3/3)
[ 107.130881] wlp9s0: association with <MAC 'psn13147' [AC2]> timed out
[ 108.040236] wlp9s0: authenticate with <MAC 'psn13147' [AC2]>
[ 108.041344] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 1/3)
[ 108.067221] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 2/3)
[ 108.088332] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 3/3)
[ 108.111303] wlp9s0: authentication with <MAC 'psn13147' [AC2]> timed out
[ 130.873623] wlp9s0: authenticate with <MAC 'psn13147' [AC2]>
[ 130.874701] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 1/3)
[ 130.900616] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 2/3)
[ 130.918906] wlp9s0: send auth to <MAC 'psn13147' [AC2]> (try 3/3)
[ 130.939592] wlp9s0: authentication with <MAC 'psn13147' [AC2]> timed out
[ 149.047781] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 280.805930] r8169 0000:05:00.0 enp5s0: link up
[ 280.805957] IPv6: ADDRCONF(NETDEV_CHANGE): enp5s0: link becomes ready
########## wireless info END ############
##### ifconfig ##########################
enp5s0 Link encap:Ethernet HWaddr <MAC 'enp5s0' [IF1]>
inet addr:192.168.1.6 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::703b:86a4:5e65:5f1c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22874 errors:0 dropped:0 overruns:0 frame:0
TX packets:14321 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:29522484 (29.5 MB) TX bytes:1092444 (1.0 MB)
wlp9s0 Link encap:Ethernet HWaddr <MAC 'wlp9s0' [IF2]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:410 (410.0 B) TX bytes:3464 (3.4 KB)
##### iwconfig ##########################
enp5s0 no wireless extensions.
lo no wireless extensions.
wlp9s0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
##### lspci #############################
05:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 05)
Subsystem: Dell RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [1028:04b0]
Kernel driver in use: r8169
09:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] [8086:008a] (rev 34)
Subsystem: Intel Corporation Centrino Wireless-N 1030 BGN [8086:5325]
Kernel driver in use: iwlwifi
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/psn13147]] (600 root)
[connection] id=psn13147 | type=wifi | permissions=user:ubuntu-mate:;
[wifi] mac-address=<MAC 'wlp9s0' [IF2]> | mac-address-blacklist= | ssid=psn13147
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/psn13147 1]] (600 root)
[connection] id=psn13147 1 | type=wifi | permissions=user:shekhar:;
[wifi] mac-address=<MAC 'wlp9s0' [IF2]> | mac-address-blacklist= | ssid=psn13147
[ipv4] method=auto
[ipv6] method=auto
### dmesg
[ 17.352305] iwlwifi 0000:09:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm
[ 18.073971] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 18.073982] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[ 18.073987] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[ 18.073993] iwlwifi 0000:09:00.0: Detected Intel(R) Centrino(R) Wireless-N 1030 BGN, REV=0xB0
[ 18.074065] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 18.143944] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 18.279036] iwlwifi 0000:09:00.0 wlp9s0: renamed from wlan0
[ 32.022839] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 32.023051] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 32.029806] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 32.029912] iwlwifi 0000:09:00.0: Radio type=0x2-0x2-0x1
[ 32.099043] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 32.105801] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 32.105908] iwlwifi 0000:09:00.0: Radio type=0x2-0x2-0x1
[ 32.161883] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 33.104552] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 103.227180] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 103.230578] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 103.242411] wlp9s0: authenticated
[ 103.244663] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 103.251528] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 103.263182] wlp9s0: associated
[ 103.263298] IPv6: ADDRCONF(NETDEV_CHANGE): wlp9s0: link becomes ready
[ 106.499415] wlp9s0: deauthenticated from 0c:d2:b5:24:a4:14 (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[ 107.015821] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 107.017287] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 107.026903] wlp9s0: authenticated
[ 107.028421] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 107.063694] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 2/3)
[ 107.098165] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 3/3)
[ 107.130881] wlp9s0: association with 0c:d2:b5:24:a4:14 timed out
[ 108.040236] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 108.041344] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 108.067221] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 108.088332] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 108.111303] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 130.873623] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 130.874701] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 130.900616] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 130.918906] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 130.939592] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 149.047781] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 826.115839] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 826.116983] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 826.126913] wlp9s0: authenticated
[ 826.128371] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 826.140167] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 826.149556] wlp9s0: associated
[ 826.149664] IPv6: ADDRCONF(NETDEV_CHANGE): wlp9s0: link becomes ready
[ 1226.263935] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 1226.265170] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 1226.285126] wlp9s0: authenticated
[ 1226.286961] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 1226.293361] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 1226.302052] wlp9s0: associated
[ 1260.259853] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 1260.260881] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 1260.280321] wlp9s0: authenticated
[ 1260.283831] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 1260.294983] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 1260.303747] wlp9s0: associated
[ 1263.535929] wlp9s0: deauthenticated from 0c:d2:b5:24:a4:14 (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[ 1264.046236] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 1264.047287] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 1264.049679] wlp9s0: authenticated
[ 1264.052391] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 1264.087120] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 2/3)
[ 1264.096947] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 1264.099224] wlp9s0: associated
[ 1270.295439] wlp9s0: deauthenticated from 0c:d2:b5:24:a4:14 (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[ 1295.441183] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 4707.415960] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 4707.419068] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 4707.425785] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 4707.425890] iwlwifi 0000:09:00.0: Radio type=0x2-0x2-0x1
[ 4707.499180] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 4707.505931] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 4707.506044] iwlwifi 0000:09:00.0: Radio type=0x2-0x2-0x1
[ 4707.561582] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 4707.823142] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 4810.156756] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 4810.157815] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 4810.160479] wlp9s0: authenticated
[ 4810.161277] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 4810.170993] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 4810.173818] wlp9s0: associated
[ 4810.173941] IPv6: ADDRCONF(NETDEV_CHANGE): wlp9s0: link becomes ready
[ 4909.677602] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 4917.939126] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 5115.557444] iwlwifi 0000:09:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm
[ 5115.574184] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 5115.574193] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[ 5115.574198] iwlwifi 0000:09:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[ 5115.574204] iwlwifi 0000:09:00.0: Detected Intel(R) Centrino(R) Wireless-N 1030 BGN, REV=0xB0
[ 5115.574278] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 5115.580990] iwlwifi 0000:09:00.0: RF_KILL bit toggled to disable radio.
[ 5115.592819] ieee80211 phy1: Selected rate control algorithm 'iwl-agn-rs'
[ 5115.603862] iwlwifi 0000:09:00.0 wlp9s0: renamed from wlan0
[ 5115.638412] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 5122.062656] iwlwifi 0000:09:00.0: RF_KILL bit toggled to enable radio.
[ 5122.066692] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 5122.073435] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 5122.073540] iwlwifi 0000:09:00.0: Radio type=0x2-0x2-0x1
[ 5122.140997] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 5122.147734] iwlwifi 0000:09:00.0: L1 Disabled - LTR Disabled
[ 5122.147840] iwlwifi 0000:09:00.0: Radio type=0x2-0x2-0x1
[ 5122.203333] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 5122.254828] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 5126.016694] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5126.019229] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5126.036801] wlp9s0: authenticated
[ 5126.037265] wlp9s0: waiting for beacon from 0c:d2:b5:24:a4:14
[ 5126.088349] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 5126.092960] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 5126.100610] wlp9s0: associated
[ 5126.100743] IPv6: ADDRCONF(NETDEV_CHANGE): wlp9s0: link becomes ready
[ 5164.139242] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5164.139972] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5164.168025] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5164.190935] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5164.221335] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5165.061459] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5165.062081] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5165.082863] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5165.105480] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5165.125699] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5166.494538] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5166.495167] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5166.514627] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5166.532644] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5166.555337] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5177.245889] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5177.246537] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5177.265749] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5177.289833] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5177.313248] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5178.667636] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 5190.721186] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 5207.758433] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5207.759599] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5207.762212] wlp9s0: authenticated
[ 5207.765515] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 5207.771859] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 5207.774016] wlp9s0: associated
[ 5207.774120] IPv6: ADDRCONF(NETDEV_CHANGE): wlp9s0: link becomes ready
[ 5274.825431] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5274.826083] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5274.845136] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5274.862699] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5274.887203] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5275.746934] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5275.747643] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5275.768389] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5275.793013] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5275.811088] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5277.180864] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5277.181678] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5277.200878] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5277.224903] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5277.247393] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5289.657788] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 5290.161444] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5290.162607] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5290.182268] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 2/3)
[ 5290.201754] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 3/3)
[ 5290.221417] wlp9s0: authentication with 0c:d2:b5:24:a4:14 timed out
[ 5315.601842] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready
[ 5376.067602] wlp9s0: authenticate with 0c:d2:b5:24:a4:14
[ 5376.068924] wlp9s0: send auth to 0c:d2:b5:24:a4:14 (try 1/3)
[ 5376.075343] wlp9s0: authenticated
[ 5376.077937] wlp9s0: associate with 0c:d2:b5:24:a4:14 (try 1/3)
[ 5376.081350] wlp9s0: RX AssocResp from 0c:d2:b5:24:a4:14 (capab=0x411 status=0 aid=4)
[ 5376.083710] wlp9s0: associated
[ 5376.083835] IPv6: ADDRCONF(NETDEV_CHANGE): wlp9s0: link becomes ready
[ 5413.155671] wlp9s0: deauthenticating from 0c:d2:b5:24:a4:14 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 5448.634806] IPv6: ADDRCONF(NETDEV_UP): wlp9s0: link is not ready