我正在使用Debian 9 Stretch (4.9)Wi-Fi 适配器 (TL-WN823N V2) 连接到 Wi-Fi。
我已经使用这个安装了驱动程序关联，我成功了。
iwconfig
root@debian:/home/annahri# iwconfig
eno1 no wireless extensions.
wlx18d6c71536ac unassociated Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency=2.417 GHz Access Point: Not-Associated
Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
lo no wireless extensions.
我尝试连接到我的家庭 wifi，我提供了正确的密码，但无法连接，它显示一个弹出窗口，显示“未提供秘密”。
我得到了这些行journal -fa
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4690] device (wlx18d6c71536ac): Activation: starting connection 'Mastrip gg.4' (d5f0fb19-5e8c-46a1-8591-c4ae76d2be1e)
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4694] audit: op="connection-activate" uuid="d5f0fb19-5e8c-46a1-8591-c4ae76d2be1e" name="Mastrip gg.4" pid=812 uid=1000 result="success"
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4701] device (wlx18d6c71536ac): state change: disconnected -> prepare (reason 'none') [30 40 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4704] manager: NetworkManager state is now CONNECTING
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4739] device (wlx18d6c71536ac): set-hw-addr: reset MAC address to 18:D6:C7:15:36:AC (preserve)
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4779] device (wlx18d6c71536ac): state change: prepare -> config (reason 'none') [40 50 0]
Aug 10 16:45:32 debian kernel: IPv6: ADDRCONF(NETDEV_UP): wlx18d6c71536ac: link is not ready
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4814] device (wlx18d6c71536ac): Activation: (wifi) access point 'Mastrip gg.4' has security, but secrets are required.
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.4815] device (wlx18d6c71536ac): state change: config -> need-auth (reason 'none') [50 60 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.5716] device (wlx18d6c71536ac): state change: need-auth -> prepare (reason 'none') [60 40 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.5738] device (wlx18d6c71536ac): state change: prepare -> config (reason 'none') [40 50 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.5743] device (wlx18d6c71536ac): Activation: (wifi) access point 'Mastrip gg.4' has security, but secrets are required.
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.5743] device (wlx18d6c71536ac): state change: config -> need-auth (reason 'none') [50 60 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.6280] device (wlx18d6c71536ac): state change: need-auth -> prepare (reason 'none') [60 40 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.6307] device (wlx18d6c71536ac): state change: prepare -> config (reason 'none') [40 50 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.6327] device (wlx18d6c71536ac): Activation: (wifi) access point 'Mastrip gg.4' has security, but secrets are required.
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.6341] device (wlx18d6c71536ac): state change: config -> need-auth (reason 'none') [50 60 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.6775] device (wlx18d6c71536ac): state change: need-auth -> prepare (reason 'none') [60 40 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7014] device (wlx18d6c71536ac): state change: prepare -> config (reason 'none') [40 50 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7019] device (wlx18d6c71536ac): Activation: (wifi) access point 'Mastrip gg.4' has security, but secrets are required.
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7020] device (wlx18d6c71536ac): state change: config -> need-auth (reason 'none') [50 60 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7582] device (wlx18d6c71536ac): state change: need-auth -> prepare (reason 'none') [60 40 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7590] device (wlx18d6c71536ac): state change: prepare -> config (reason 'none') [40 50 0]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7594] device (wlx18d6c71536ac): Activation: (wifi) access point 'Mastrip gg.4' has security, but secrets are required.
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7595] device (wlx18d6c71536ac): state change: config -> failed (reason 'no-secrets') [50 120 7]
Aug 10 16:45:32 debian NetworkManager[499]: <info> [1502358332.7598] manager: NetworkManager state is now DISCONNECTED
Aug 10 16:45:32 debian NetworkManager[499]: <warn> [1502358332.7613] device (wlx18d6c71536ac): Activation: failed for connection 'Mastrip gg.4'
但是当我尝试使用连接时wicd，我成功连接到了我家的wifi。我只是好奇为什么NetworkManager无法连接，因为no secrets provided。
答案1
尝试使用“nmtui”激活连接：
（“*”表示已激活）。
并通过编辑连接确保您拥有正确的密码。
这对我有用。