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“无法添加/激活连接 (32)... -1 未知”

tag-icon • tag-icon 14.04 networking network-manager interface ifconfig
“无法添加/激活连接 (32)... -1 未知”

当我尝试连接到任何无线网络时，我得到：

无法添加/激活连接（32）... -1 未知

我已经有很多这样的答案，例如这个重建 PolicyKit 目录。这款 Ubuntu 14.04 LTS 超薄戴尔 XPS 没有以太网端口，因此调试起来并不容易，而且我无法运行系统更新，除非您有办法通过 USB 进行操作？

我的/etc/network/interfaces：

auto lo
iface lo inet loopback
auto wlan0
iface wlan0 inet dhcp

另外，跑步sudo /etc/init.d/networking restart说

停止：停止时作业失败 启动：作业已在运行：网络

我也尝试了所有这些，但没有成功：

sudo modprobe -r iwlwifi && sudo modprobe iwlwifi [until i run this i can see no network ssids]
sudo service network-manager restart
rfkill unblock all
sudo rm /etc/udev/rules.d/70-persistent-net.rules
sudo ifdown wlan0 && sudo ifup -v wlan0

上面最后一行产生了这个......

$sudo ifdown wlan0 && sudo ifup -v wlan0
ifdown: waiting for lock on /run/network/ifstate.wlan0
Internet Systems Consortium DHCP Client 4.2.4
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/wlan0/88:53:2e:99:36:8f
Sending on   LPF/wlan0/88:53:2e:99:36:8f
Sending on   Socket/fallback
Configuring interface wlan0=wlan0 (inet)
run-parts --verbose /etc/network/if-pre-up.d
run-parts: executing /etc/network/if-pre-up.d/ethtool
run-parts: executing /etc/network/if-pre-up.d/wireless-tools
run-parts: executing /etc/network/if-pre-up.d/wpasupplicant
wpa_supplicant: wpa-driver nl80211,wext (default)
wpa_supplicant: /sbin/wpa_supplicant -s -B -P /var/run/wpa_supplicant.wlan0.pid -i wlan0 -D nl80211,wext -C /var/run/wpa_supplicant
Starting /sbin/wpa_supplicant...
wpa_supplicant: /sbin/wpa_supplicant daemon failed to start
run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1

dhclient -1 -v -pf /run/dhclient.wlan0.pid -lf /var/lib/dhcp/dhclient.wlan0.leases wlan0    
Internet Systems Consortium DHCP Client 4.2.4
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/wlan0/88:53:2e:99:36:8f
Sending on   LPF/wlan0/88:53:2e:99:36:8f
Sending on   Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 18 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 21 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 21 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 9 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 14 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 20 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 17 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 18 (xid=0x92ac315a)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 (xid=0x92ac315a)
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
run-parts --verbose /etc/network/if-up.d
run-parts: executing /etc/network/if-up.d/000resolvconf
run-parts: executing /etc/network/if-up.d/avahi-autoipd
run-parts: executing /etc/network/if-up.d/avahi-daemon
run-parts: executing /etc/network/if-up.d/ethtool
run-parts: executing /etc/network/if-up.d/ntpdate
run-parts: executing /etc/network/if-up.d/openvpn
run-parts: executing /etc/network/if-up.d/postfix
run-parts: executing /etc/network/if-up.d/upstart
run-parts: executing /etc/network/if-up.d/wpasupplicant
$

在此处输入图片描述

答案1

你的/etc/网络/接口文件有误。由于网络管理器正在运行，因此无需在该文件中声明 wlan0。请将其恢复为默认值：

auto lo
iface lo inet loopback

重新启动并让我们听取您的报告。

如果此方法无效，请仔细检查网络管理器中的所有设置。单击图标并选择编辑连接。确保您的 WiFi 连接设置为客户端模式。此外，检查 IPv4 设置下的方法是否设置为自动 (DHCP)。如果您进行了任何更改，请重新启动 NM：

sudo service network-manager restart

有什么改进吗？如果没有，让我们回到/etc/网络/接口.设置如下：

auto lo
iface lo inet loopback

auto wlan0
iface wlan0 inet dhcp
wpa-ssid <your_network_ssid>
wpa-psk <your_secret_key>

重启。你连接了吗？如果是，我接下来会编辑这个答案，建议你清除并重新安装网络管理器。

我们在您的日志中看到这一点：

如果不再使用“/var/run/wpa_supplicant/wlan0”，请手动删除它 12 月 13 日 16:48:20 eataylor-Dell-System-XPS-L321X wpa_supplicant[4530]: 无法初始化控制接口“/var/run/wpa_supplicant”。#012您可能有另一个 wpa_supplicant 进程正在运行，或者该文件是由于 wpa_supplicant 不干净终止而留下的，在这种情况下，您需要在再次启动 wpa_supplicant 之前手动删除此文件。

请执行以下操作：

sudo rm /var/run/wpa_supplicant/wlan0

重启。再次检查：

sudo ifdown wlan0 && sudo ifup -v wlan0

有改善吗？

这是我们在聊天中所采取的步骤的总结。

删除 /var/run/wpa_supplicant/wlan0 后，连接到手机热点，因为路由器似乎有点麻烦。然后执行以下操作：

sudo apt-get purge network-manager*
sudo apt-get install --reinstall wpasupplicant
sudo apt-get install network-manager network-manager-gnome

注释掉 wlan0 行/etc/网络/接口然后重启。您已成功连接。

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