我有配备英特尔无线 7260 的戴尔 m3800。
我通过 do-release-upgrade 将笔记本电脑从 Ubuntu 19.04 升级到 19.10，但network-manager无法再使用。如果我启动 Windows 或使用 19.10 Ubuntu 安装程序，我的网卡就可以正常工作。
network-manager连接一小会儿。系统托盘网络图标将切换为“ ...”（从未连接），互联网将正常工作（有时需要一分钟，有时更短），最后会通知网络连接失败，然后会再次断开连接。gnome 设置 wifi 面板将显示“Wifi 不可用”或“不可用的 802.1x 请求者失败”
我必须安装wicd才能获得稳定的网络。
串行通信
06:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260
Flags: bus master, fast devsel, latency 0, IRQ 33
Memory at f7900000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
杀戮
ID TYPE DEVICE SOFT HARD
1 wlan phy0 unblocked unblocked
31 nfc nfc0 unblocked unblocked
32 bluetooth hci0 blocked unblocked
系统日志
Oct 25 00:12:54 mycmpname NetworkManager[1336]: <info> [1571976774.1063] manager: sleep: sleep requested (sleeping: no enabled: yes)
Oct 25 00:12:54 mycmpname NetworkManager[1336]: <info> [1571976774.1064] manager: NetworkManager state is now ASLEEP
Oct 25 00:35:48 mycmpname NetworkManager[1336]: <info> [1571978146.5635] bluez5: NAP: removed interface 5C:51:4F:7C:23:CD
Oct 25 00:35:48 mycmpname NetworkManager[1336]: <info> [1571978146.8569] bluez5: NAP: added interface 5C:51:4F:7C:23:CD
Oct 25 00:35:48 mycmpname NetworkManager[1336]: <info> [1571978148.4205] manager: sleep: wake requested (sleeping: yes enabled: yes)
Oct 25 00:35:48 mycmpname NetworkManager[1336]: <info> [1571978148.4205] device (wlp6s0): state change: unavailable -> unmanaged (reason 'sleeping', sys-iface-state: 'managed')
Oct 25 00:35:48 mycmpname NetworkManager[1336]: <info> [1571978148.4214] device (wlp6s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'managed')
Oct 25 00:35:48 mycmpname NetworkManager[1336]: <info> [1571978148.4232] manager: NetworkManager state is now CONNECTED_LOCAL
Oct 25 00:38:21 mycmpname NetworkManager[1336]: <info> [1571978301.5769] agent-manager: req[0x7f2d5c0019b0, :1.148/org.gnome.Shell.NetworkAgent/1000]: agent registered
Oct 25 00:40:24 mycmpname NetworkManager[1336]: <info> [1571978424.9081] device (tun0): state change: activated -> unmanaged (reason 'unmanaged', sys-iface-state: 'removed')
Oct 25 00:40:24 mycmpname dbus-daemon[1323]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.15' (uid=0 pid=1336 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Oct 25 00:40:25 mycmpname NetworkManager[1336]: <info> [1571978424.9094] manager: NetworkManager state is now DISCONNECTED
Oct 25 00:40:36 mycmpname systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.6251] manager: (tun0): new Tun device (/org/freedesktop/NetworkManager/Devices/10)
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7201] device (tun0): state change: unmanaged -> unavailable (reason 'connection-assumed', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7245] device (tun0): state change: unavailable -> disconnected (reason 'connection-assumed', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7258] device (tun0): Activation: starting connection 'tun0' (9b8049b3-b4dd-4711-9f4f-536729afaeef)
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7261] device (tun0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7269] device (tun0): state change: prepare -> config (reason 'none', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7280] device (tun0): state change: config -> ip-config (reason 'none', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7284] device (tun0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname dbus-daemon[1323]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.15' (uid=0 pid=1336 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7823] device (tun0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7826] device (tun0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'external')
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7832] manager: NetworkManager state is now CONNECTED_LOCAL
Oct 25 00:40:50 mycmpname NetworkManager[1336]: <info> [1571978450.7844] device (tun0): Activation: successful, device activated.
Oct 25 00:41:02 mycmpname systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Oct 25 06:43:27 mycmpname NetworkManager[1336]: <info> [1572000207.3849] agent-manager: req[0x7f2d5c0019b0, :1.148/org.gnome.Shell.NetworkAgent/1000]: agent registered
日志控制
-- Logs begin at Wed 2019-05-29 21:12:22 EDT, end at Fri 2019-10-25 07:10:26 EDT. --
-- Logs begin at Wed 2019-05-29 21:12:22 EDT, end at Fri 2019-10-25 07:10:26 EDT. --
May 29 21:13:02 ihatebill NetworkManager[1191]: <warn> [1559178782.4813] config: unknown key 'wifi.cloned-mac-address' in section [device-mac-addr-change-wifi] of file '/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf'
May 29 21:13:02 ihatebill NetworkManager[1191]: <warn> [1559178782.4813] config: unknown key 'ethernet.cloned-mac-address' in section [device-mac-addr-change-wifi] of file '/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf'
May 29 21:13:11 ihatebill NetworkManager[1191]: <warn> [1559178791.0364] sup-iface: failed to cancel p2p connect: P2P cancel failed
May 29 21:13:17 ihatebill NetworkManager[1191]: <error> [1559178797.3588] vpn-connection[0x563b63e560a0,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 29 21:13:17 ihatebill NetworkManager[1191]: <warn> [1559178797.3600] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 29 21:13:17 ihatebill NetworkManager[1191]: <warn> [1559178797.4052] sup-iface[0x563b63d6c130,wlp6s0]: connection disconnected (reason -3)
May 29 21:13:21 ihatebill NetworkManager[1191]: <error> [1559178801.6111] vpn-connection[0x563b63e562b0,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 29 21:13:21 ihatebill NetworkManager[1191]: <warn> [1559178801.6125] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 29 21:13:21 ihatebill NetworkManager[1191]: <warn> [1559178801.8892] sup-iface[0x563b63d6c130,wlp6s0]: connection disconnected (reason -3)
May 29 21:13:26 ihatebill NetworkManager[1191]: <error> [1559178806.1109] vpn-connection[0x563b63e564c0,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 29 21:13:26 ihatebill NetworkManager[1191]: <warn> [1559178806.1123] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 29 21:13:26 ihatebill NetworkManager[1191]: <warn> [1559178806.3432] sup-iface[0x563b63d6c130,wlp6s0]: connection disconnected (reason -3)
May 29 21:13:30 ihatebill NetworkManager[1191]: <error> [1559178810.5733] vpn-connection[0x563b63e566d0,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 29 21:13:30 ihatebill NetworkManager[1191]: <warn> [1559178810.5747] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 29 21:13:30 ihatebill NetworkManager[1191]: <warn> [1559178810.7002] sup-iface[0x563b63d6c130,wlp6s0]: connection disconnected (reason -3)
May 30 02:29:09 ihatebill NetworkManager[1191]: <warn> [1559197749.8347] sup-iface[0x563b63d6c130,wlp6s0]: connection disconnected (reason -3)
May 30 09:13:15 ihatebill NetworkManager[1191]: <warn> [1559221995.6152] sup-iface[0x563b63d6c210,wlp6s0]: connection disconnected (reason -3)
May 30 20:21:47 ihatebill NetworkManager[1191]: <warn> [1559262107.6672] sup-iface[0x563b63d6c2f0,wlp6s0]: connection disconnected (reason -3)
May 31 04:50:44 ihatebill NetworkManager[1191]: <warn> [1559292644.7199] sup-iface[0x563b63d6c3d0,wlp6s0]: connection disconnected (reason -3)
May 31 19:08:15 ihatebill NetworkManager[1191]: <warn> [1559344095.6126] sup-iface[0x563b63d6c4b0,wlp6s0]: connection disconnected (reason -3)
-- Reboot --
May 31 19:49:39 ihatebill NetworkManager[1219]: <warn> [1559346579.6725] config: unknown key 'wifi.cloned-mac-address' in section [device-mac-addr-change-wifi] of file '/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf'
May 31 19:49:39 ihatebill NetworkManager[1219]: <warn> [1559346579.6725] config: unknown key 'ethernet.cloned-mac-address' in section [device-mac-addr-change-wifi] of file '/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf'
May 31 19:49:50 ihatebill NetworkManager[1219]: <warn> [1559346590.3757] sup-iface: failed to cancel p2p connect: P2P cancel failed
May 31 19:49:56 ihatebill NetworkManager[1219]: <error> [1559346596.7303] vpn-connection[0x55b0b738a0f0,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 31 19:49:56 ihatebill NetworkManager[1219]: <warn> [1559346596.7316] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 31 19:49:56 ihatebill NetworkManager[1219]: <warn> [1559346596.8111] sup-iface[0x55b0b7270130,wlp6s0]: connection disconnected (reason -3)
May 31 19:50:00 ihatebill NetworkManager[1219]: <error> [1559346600.9287] vpn-connection[0x55b0b738a300,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 31 19:50:00 ihatebill NetworkManager[1219]: <warn> [1559346600.9297] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 31 19:50:01 ihatebill NetworkManager[1219]: <warn> [1559346601.3161] sup-iface[0x55b0b7270130,wlp6s0]: connection disconnected (reason -3)
May 31 19:50:05 ihatebill NetworkManager[1219]: <error> [1559346605.4470] vpn-connection[0x55b0b738a510,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 31 19:50:05 ihatebill NetworkManager[1219]: <warn> [1559346605.4483] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 31 19:50:05 ihatebill NetworkManager[1219]: <warn> [1559346605.6774] sup-iface[0x55b0b7270130,wlp6s0]: connection disconnected (reason -3)
May 31 19:50:09 ihatebill NetworkManager[1219]: <error> [1559346609.8019] vpn-connection[0x55b0b738a720,a6fdcbc5-f6d7-415d-80ff-a19ca8f36bf3,"USA-NEW-YORK.TorGuard",0]: Failed to request VPN secrets #3: No agents were available for this request.
May 31 19:50:09 ihatebill NetworkManager[1219]: <warn> [1559346609.8030] device (wlp6s0): Activation: failed for connection 'MyWifi'
May 31 21:39:20 ihatebill NetworkManager[1219]: <warn> [1559353160.7134] sup-iface[0x55b0b7270130,wlp6s0]: connection disconnected (reason -3)
May 31 22:30:40 ihatebill NetworkManager[1219]: <warn> [1559356240.4985] sup-iface[0x55b0b7270210,wlp6s0]: connection disconnected (reason -4)
May 31 22:30:55 ihatebill NetworkManager[1219]: <warn> [1559356255.5346] device (wlp6s0): link timed out.
May 31 22:30:55 ihatebill NetworkManager[1219]: <warn> [1559356255.7070] device (wlp6s0): Activation: failed for connection 'MyWifi'
Jun 01 01:14:08 ihatebill NetworkManager[1219]: <warn> [1559366048.6132] sup-iface[0x55b0b7270210,wlp6s0]: connection disconnected (reason -3)
答案1
我在使用硬连线网卡从 19.04 升级到 19.10 时遇到了同样的问题。我发现至少可以让互联网工作（但网络管理器不能工作）的解决方案是使用命令“sudo dhclient enp3s0”，该命令适用于以太网卡。您可以尝试“sudo dhclient wlp2s0”，该命令适用于 wifi 设备。希望这能有所帮助。由于已经 2 个月没有答复，您可能找到了其他解决方案。