在看似成功安装后dnf update -y && reboot，我尝试使用
nmcli dev wifi connect 'mywifirouter' password 'password'
...我明白了
Error: Connection activation failed: (5) IP configuration could not be reserved (no available address, timeout, etc.).
更多来自 /var/log/messages 的内容（由 rsyslog 包提供）
Feb 14 14:18:31 rp3-f3 NetworkManager[554]: <info> [1550171911.7750] ifcfg-rh: add connection in-memory (55dda67d-1e00-4684-9280-909c6ee400f9,"mywifirouter 3")
Feb 14 14:18:31 rp3-f3 NetworkManager[554]: <info> [1550171911.7881] device (wlan0): Activation: starting connection 'mywifirouter 3' (55dda67d-1e00-4684-9280-909c6ee400f9)
Feb 14 14:18:31 rp3-f3 NetworkManager[554]: <info> [1550171911.8045] settings-connection[0x78e378,55dda67d-1e00-4684-9280-909c6ee400f9]: write: successfully commited (ifcfg-rh: persist (null))
Feb 14 14:18:31 rp3-f3 NetworkManager[554]: <info> [1550171911.8051] audit: op="connection-add-activate" uuid="55dda67d-1e00-4684-9280-909c6ee400f9" name="mywifirouter 3" pid=829 uid=0 result="success"
Feb 14 14:18:31 rp3-f3 NetworkManager[554]: <info> [1550171911.8311] device (wlan0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.3518] device (wlan0): set-hw-addr: reset MAC address to B8:27:EB:4E:21:31 (preserve)
Feb 14 14:18:32 rp3-f3 kernel: IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4138] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4170] device (wlan0): Activation: (wifi) access point 'mywifirouter 3' has security, but secrets are required.
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4173] device (wlan0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4197] sup-iface[0x75c728,wlan0]: wps: type pbc start...
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4489] device (wlan0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4538] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4569] device (wlan0): Activation: (wifi) connection 'mywifirouter 3' has security, and secrets exist. No new secrets needed.
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4573] Config: added 'ssid' value 'mywifirouter'
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4574] Config: added 'scan_ssid' value '1'
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4575] Config: added 'bgscan' value 'simple:30:-80:86400'
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4577] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256'
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4578] Config: added 'auth_alg' value 'OPEN'
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.4579] Config: added 'psk' value '<hidden>'
Feb 14 14:18:32 rp3-f3 NetworkManager[554]: <info> [1550171912.5643] device (wlan0): supplicant interface state: disconnected -> scanning
Feb 14 14:18:35 rp3-f3 wpa_supplicant[628]: wlan0: Trying to associate with SSID 'mywifirouter'
Feb 14 14:18:35 rp3-f3 NetworkManager[554]: <info> [1550171915.8830] device (wlan0): supplicant interface state: scanning -> associating
Feb 14 14:18:39 rp3-f3 wpa_supplicant[628]: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
Feb 14 14:18:39 rp3-f3 NetworkManager[554]: <info> [1550171919.5527] device (wlan0): supplicant interface state: associating -> disconnected
Feb 14 14:18:39 rp3-f3 NetworkManager[554]: <info> [1550171919.6531] device (wlan0): supplicant interface state: disconnected -> scanning
Feb 14 14:18:42 rp3-f3 wpa_supplicant[628]: wlan0: Trying to associate with SSID 'mywifirouter'
Feb 14 14:18:42 rp3-f3 NetworkManager[554]: <info> [1550171922.8896] device (wlan0): supplicant interface state: scanning -> associating
Feb 14 14:18:46 rp3-f3 wpa_supplicant[628]: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
Feb 14 14:18:46 rp3-f3 NetworkManager[554]: <info> [1550171926.4180] device (wlan0): supplicant interface state: associating -> disconnected
Feb 14 14:18:46 rp3-f3 NetworkManager[554]: <info> [1550171926.9547] device (wlan0): supplicant interface state: disconnected -> scanning
Feb 14 14:18:50 rp3-f3 wpa_supplicant[628]: wlan0: Trying to associate with SSID 'mywifirouter'
Feb 14 14:18:50 rp3-f3 NetworkManager[554]: <info> [1550171930.2365] device (wlan0): supplicant interface state: scanning -> associating
Feb 14 14:18:53 rp3-f3 wpa_supplicant[628]: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
Feb 14 14:18:53 rp3-f3 NetworkManager[554]: <info> [1550171933.7849] device (wlan0): supplicant interface state: associating -> disconnected
Feb 14 14:18:54 rp3-f3 NetworkManager[554]: <info> [1550171934.8220] device (wlan0): supplicant interface state: disconnected -> scanning
Feb 14 14:18:57 rp3-f3 NetworkManager[554]: <warn> [1550171937.6659] device (wlan0): Activation: (wifi) association took too long
Feb 14 14:18:57 rp3-f3 NetworkManager[554]: <info> [1550171937.6661] device (wlan0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Feb 14 14:18:57 rp3-f3 NetworkManager[554]: <info> [1550171937.6699] sup-iface[0x75c728,wlan0]: wps: type pbc start...
Feb 14 14:18:57 rp3-f3 NetworkManager[554]: <warn> [1550171937.6795] device (wlan0): Activation: (wifi) asking for new secrets
Feb 14 14:18:57 rp3-f3 NetworkManager[554]: <warn> [1550171937.6858] device (wlan0): No agents were available for this request.
Feb 14 14:18:57 rp3-f3 wpa_supplicant[628]: wlan0: WPS-PBC-ACTIVE
答案1
在您的路由器上，将 802.11n 模式更改为混合或关闭。基于此问题的答案： https://askubuntu.com/questions/630306/
或者，killall wpa_supplicant根据此错误报告的解决方案尝试运行：
https://bugs.launchpad.net/ubuntu/+source/gnome-nettool/+bug/1311257
请评论，让我们知道哪一个有效，如果有的话。
答案2
这似乎是由于手动安装 Fedora 29 中现在包含的 2 个 Broadcom 驱动程序造成的。从我的自定义 SD 卡格式化程序脚本中删除这些步骤后，wifi 工作正常。感谢您的建议，我会记住这些建议，以备将来遇到问题