在我的两台运行 Arch Linux 和 KDE Plasma 的笔记本电脑上，Networkmanager 在登录后无法自动连接到已保存的无线网络，并显示一条No secret provided非常烦人的消息。失败后手动连接或在尝试自动连接时断开连接然后手动连接都可以。
dmesg | grep wlp3s0在两台机器上均产生以下结果：
[ 2.932334] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 2.946381] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 3.214407] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 3.274321] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 12.008032] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 42.004698] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 42.012632] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 49.783058] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
知道如何解决这个问题吗？