Wifi接続の問題
これは13.04の問題であり、wifiの問題です。 Ubuntuはネットワークに接続しません。私の他のデバイスはすべて正常に動作します。
コンピューターはネットワークを検出し、wifiパスワードダイアログを表示します。正しいパスワードを入力し、[OK]をクリックすると、数秒間接続が試行され、パスワードの入力が再度要求されます。私は新しいD-LinkワイヤレスN 150 Pico USBアダプターを使用しています。これは、Windowsの下で同じネットワークに接続するのにうまく機能します。
Googleで数時間検索したところ、答えが見つかりませんでした。おそらくここの誰かが助けてくれるでしょうか。
syslogに含まれるもの：
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: get_secret_flags: assertion `is_secret_prop (setting, secret_name, error)' failed
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0/wireless): connection 'Wi-Fi connection 1' has security, and secrets exist. No new secrets needed.
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'ssid' value 'kaylag2'
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'scan_ssid' value '1'
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'psk' value '<omitted>'
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: set interface ap_scan to 1
Sep 7 09:25:40 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: inactive -> scanning
Sep 7 09:25:41 mike-ubuntu wpa_supplicant[1017]: wlan0: SME: Trying to authenticate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.665268] wlan0: authenticate with 00:13:10:e1:f9:a2
Sep 7 09:25:41 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.681287] wlan0: send auth to 00:13:10:e1:f9:a2 (try 1/3)
Sep 7 09:25:41 mike-ubuntu wpa_supplicant[1017]: wlan0: Trying to associate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.686768] wlan0: authenticated
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.687005] rtl8192cu 1-1:1.0 wlan0: disabling HT/VHT due to WEP/TKIP use
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.687010] rtl8192cu 1-1:1.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.687014] rtl8192cu 1-1:1.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.688037] wlan0: associate with 00:13:10:e1:f9:a2 (try 1/3)
Sep 7 09:25:41 mike-ubuntu wpa_supplicant[1017]: wlan0: Associated with 00:13:10:e1:f9:a2
Sep 7 09:25:41 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: authenticating -> associated
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.691496] wlan0: RX AssocResp from 00:13:10:e1:f9:a2 (capab=0x431 status=0 aid=12)
Sep 7 09:25:41 mike-ubuntu kernel: [ 1277.691541] wlan0: associated
Sep 7 09:25:41 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake
Sep 7 09:25:51 mike-ubuntu wpa_supplicant[1017]: wlan0: Authentication with 00:13:10:e1:f9:a2 timed out.
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.695734] wlan0: disassociating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep 7 09:25:51 mike-ubuntu wpa_supplicant[1017]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3
Sep 7 09:25:51 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: 4-way handshake -> disconnected
Sep 7 09:25:51 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0/wireless): disconnected during association, asking for new key.
Sep 7 09:25:51 mike-ubuntu NetworkManager[986]: <info> (wlan0): device state change: config -> need-auth (reason 'supplicant-disconnect') [50 60 8]
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.711433] wlan0: deauthenticating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.712868] cfg80211: Calling CRDA to update world regulatory domain
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.783416] cfg80211: World regulatory domain updated:
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.783432] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.783439] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.783445] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.783450] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.783456] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 09:25:51 mike-ubuntu kernel: [ 1287.783461] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 09:25:52 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: disconnected -> inactive
Sep 7 09:26:12 mike-ubuntu kernel: [ 1308.420423] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Sep 7 09:26:12 mike-ubuntu kernel: [ 1308.422269] sd 6:0:0:0: [sdb] Asking for cache data failed
Sep 7 09:26:12 mike-ubuntu kernel: [ 1308.422282] sd 6:0:0:0: [sdb] Assuming drive cache: write through
ルーターでWPAを無効にしようとしましたが、まだ接続できません。問題を絞り込むようにしています。
Sudo lshw -Cネットワーク
*-通信網
説明：ワイヤレスインターフェイスの物理ID：1バス情報：usb @ 1：1論理名：wlan0シリアル：14：d6：4d：a7：0d：2e機能：イーサネット物理ワイヤレス構成：broadcast = yes driver = rtl8192cu driverversion = 3.8.0-19-generic firmware = N/A link = no multicast = yes wireless = IEEE 802.11bgn
この後のsyslog：Sudo iw wlan0 set power_save off
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) starting connection 'Wi-Fi connection 1'
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0/wireless): access point 'Wi-Fi connection 1' has security, but secrets are required.
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0/wireless): connection 'Wi-Fi connection 1' has security, and secrets exist. No new secrets needed.
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'ssid' value 'kaylag2'
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'scan_ssid' value '1'
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'psk' value '<omitted>'
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: set interface ap_scan to 1
Sep 7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: inactive -> scanning
Sep 7 11:59:53 mike-ubuntu wpa_supplicant[1193]: wlan0: SME: Trying to authenticate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep 7 11:59:53 mike-ubuntu kernel: [ 1331.829097] wlan0: authenticate with 00:13:10:e1:f9:a2
Sep 7 11:59:53 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Sep 7 11:59:53 mike-ubuntu kernel: [ 1331.844435] wlan0: send auth to 00:13:10:e1:f9:a2 (try 1/3)
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.048053] wlan0: send auth to 00:13:10:e1:f9:a2 (try 2/3)
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.051835] wlan0: authenticated
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.052717] rtl8192cu 1-1:1.0 wlan0: disabling HT/VHT due to WEP/TKIP use
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.052779] rtl8192cu 1-1:1.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.052786] rtl8192cu 1-1:1.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
Sep 7 11:59:53 mike-ubuntu wpa_supplicant[1193]: wlan0: Trying to associate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.056098] wlan0: associate with 00:13:10:e1:f9:a2 (try 1/3)
Sep 7 11:59:53 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: authenticating -> associating
Sep 7 11:59:53 mike-ubuntu wpa_supplicant[1193]: wlan0: Associated with 00:13:10:e1:f9:a2
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.089970] wlan0: RX AssocResp from 00:13:10:e1:f9:a2 (capab=0x431 status=0 aid=12)
Sep 7 11:59:53 mike-ubuntu kernel: [ 1332.090161] wlan0: associated
Sep 7 11:59:53 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: associating -> 4-way handshake
Sep 7 12:00:03 mike-ubuntu wpa_supplicant[1193]: wlan0: Authentication with 00:13:10:e1:f9:a2 timed out.
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.094561] wlan0: disassociating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep 7 12:00:03 mike-ubuntu wpa_supplicant[1193]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3
Sep 7 12:00:03 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: 4-way handshake -> disconnected
Sep 7 12:00:03 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0/wireless): disconnected during association, asking for new key.
Sep 7 12:00:03 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: config -> need-auth (reason 'supplicant-disconnect') [50 60 8]
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.106375] wlan0: deauthenticating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.112407] cfg80211: Calling CRDA to update world regulatory domain
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.164006] cfg80211: World regulatory domain updated:
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.164102] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.164109] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.164116] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.164121] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.164127] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:00:03 mike-ubuntu kernel: [ 1342.164132] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
oKここに目立つものがあるかどうかはわかりません：
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) starting connection 'kaylag2'
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0/wireless): connection 'kaylag2' requires no security. No secrets needed.
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: added 'ssid' value 'kaylag2'
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: added 'scan_ssid' value '1'
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: added 'key_mgmt' value 'NONE'
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: set interface ap_scan to 1
Sep 7 12:27:36 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: inactive -> scanning
Sep 7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: SME: Trying to authenticate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.581772] wlan0: authenticate with 00:13:10:e1:f9:a2
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.620391] wlan0: send auth to 00:13:10:e1:f9:a2 (try 1/3)
Sep 7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: Trying to associate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.630642] wlan0: authenticated
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.631154] rtl8192cu 1-1:1.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.631164] rtl8192cu 1-1:1.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.632450] wlan0: associate with 00:13:10:e1:f9:a2 (try 1/3)
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: authenticating -> associating
Sep 7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: Associated with 00:13:10:e1:f9:a2
Sep 7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: CTRL-EVENT-CONNECTED - Connection to 00:13:10:e1:f9:a2 completed (auth) [id=0 id_str=]
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.642953] wlan0: RX AssocResp from 00:13:10:e1:f9:a2 (capab=0x421 status=0 aid=4)
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.643075] wlan0: associated
Sep 7 12:27:37 mike-ubuntu kernel: [ 115.643160] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: associating -> completed
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful. Connected to wireless network 'kaylag2'.
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: config -> ip-config (reason 'none') [50 70 0]
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> dhclient started with pid 2201
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Beginning IP6 addrconf.
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
Sep 7 12:27:37 mike-ubuntu dhclient: Internet Systems Consortium DHCP Client 4.2.4
Sep 7 12:27:37 mike-ubuntu dhclient: Copyright 2004-2012 Internet Systems Consortium.
Sep 7 12:27:37 mike-ubuntu dhclient: All rights reserved.
Sep 7 12:27:37 mike-ubuntu dhclient: For info, please visit https://www.isc.org/software/dhcp/
Sep 7 12:27:37 mike-ubuntu dhclient:
Sep 7 12:27:37 mike-ubuntu dhclient: Listening on LPF/wlan0/14:d6:4d:a7:0d:2e
Sep 7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): DHCPv4 state changed nbi -> preinit
Sep 7 12:27:37 mike-ubuntu dhclient: Sending on LPF/wlan0/14:d6:4d:a7:0d:2e
Sep 7 12:27:37 mike-ubuntu dhclient: Sending on Socket/fallback
Sep 7 12:27:37 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 (xid=0x2a921615)
Sep 7 12:27:39 mike-ubuntu avahi-daemon[864]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::16d6:4dff:fea7:d2e.
Sep 7 12:27:39 mike-ubuntu avahi-daemon[864]: New relevant interface wlan0.IPv6 for mDNS.
Sep 7 12:27:39 mike-ubuntu avahi-daemon[864]: Registering new address record for fe80::16d6:4dff:fea7:d2e on wlan0.*.
Sep 7 12:27:40 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4 (xid=0x2a921615)
Sep 7 12:27:44 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a921615)
Sep 7 12:27:54 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a921615)
Sep 7 12:27:57 mike-ubuntu NetworkManager[868]: <info> (wlan0): IP6 addrconf timed out or failed.
Sep 7 12:27:57 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Sep 7 12:27:57 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Sep 7 12:27:57 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Sep 7 12:28:04 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a921615)
Sep 7 12:28:14 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 (xid=0x2a921615)
Sep 7 12:28:20 mike-ubuntu kernel: [ 158.449728] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Sep 7 12:28:20 mike-ubuntu kernel: [ 158.451338] sd 6:0:0:0: [sdb] Asking for cache data failed
Sep 7 12:28:20 mike-ubuntu kernel: [ 158.451348] sd 6:0:0:0: [sdb] Assuming drive cache: write through
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <warn> (wlan0): DHCPv4 request timed out.
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 2201
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) started...
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <warn> Activation (wlan0) failed for connection 'kaylag2'
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) complete.
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): deactivating device (reason 'none') [0]
Sep 7 12:28:22 mike-ubuntu avahi-daemon[864]: Withdrawing address record for fe80::16d6:4dff:fea7:d2e on wlan0.
Sep 7 12:28:22 mike-ubuntu avahi-daemon[864]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::16d6:4dff:fea7:d2e.
Sep 7 12:28:22 mike-ubuntu avahi-daemon[864]: Interface wlan0.IPv6 no longer relevant for mDNS.
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.024993] wlan0: deauthenticating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep 7 12:28:22 mike-ubuntu wpa_supplicant[906]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.040777] cfg80211: Calling CRDA to update world regulatory domain
Sep 7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: completed -> disconnected
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.132211] cfg80211: World regulatory domain updated:
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.132227] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.132231] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.132234] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.132237] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.132239] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:28:22 mike-ubuntu kernel: [ 161.132242] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 7 12:28:23 mike-ubuntu avahi-daemon[864]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::16d6:4dff:fea7:d2e.
Sep 7 12:28:23 mike-ubuntu avahi-daemon[864]: New relevant interface wlan0.IPv6 for mDNS.
Sep 7 12:28:23 mike-ubuntu avahi-daemon[864]: Registering new address record for fe80::16d6:4dff:fea7:d2e on wlan0.*.
カードをすぐに切断する傾向があるワイヤレス省電力をオフにしようとすることができます。
Sudo iw wlan0 set power_save off
編集：さらにいくつかの提案...
送信した出力から、ipv6が接続に失敗している可能性があります
接続を編集>ネットワークを選択して、編集> IPV6タブをクリックし、メソッドを「無視」に設定
証明書に問題がある人と一緒に他のスレッドを見たことがあります： 無線ネットワークでの認証
Sudo nano /etc/NetworkManager/system-connections/YOUR-NETWORK-NAME
そして、行をコメントアウトします（＃を前に置きます）system-ca-cert = true
USBアダプターのファームウェアの問題でしょうか？イーサネットケーブルを介して接続し、ソフトウェアアップデーターを介してアップデートを試みることができます。
頭に浮かぶ最後のものは、現在の接続を削除して最初からやり直すだけです...
どうなったか教えてください
DhclientがルーターからIPを取得できないことがわかります。少なくともIPv6。したがって、IPv6を「無視」に設定するか、IPv6/IPv4の使用を有効/無効にしてください。これはすべて私を助けませんでした（私は同じログを持っています）。 IPv4を手動で設定します。最初にランダムIPを設定し、ルーターに接続します。ここにはインターネットはありませんが、ルーターに接続しています。次に、ネットワークをnmapしてルーターIPを見つけます：nmap 192.168.0.0/23そして、ルーターIPをゲートウェイとして設定します。
これはすべての状況に対する解決策ではありませんが、今夜はホテルの無料Wi-Fiに接続するのに役立ちました。また、DNSを設定する必要がありました。 GoogleパブリックDNSを使用しましたが、他のDNSを設定できます。