我在一台新机器上安装了全新的 FC21，并配有 Broadcom 无线网卡。我花了一段时间才安装好正确的驱动程序（rpmfusion 中的 kmod-wl），NetworkManager 也显示了无线网卡。但当我尝试选择网络时，它显示“无网络”。我插入了 Netgear USB 无线适配器，它工作正常（检测我的家庭网络并连接正常）。
在 Linux 和硬件方面我并不是真正的专家，所以不知道下一步该尝试什么。
一些信息：
[andy@localhost ~]$ lspci | grep -i wireless
02:00.0 Network controller: Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter (rev 03)
[andy@localhost ~]$ lsmod | grep wl
wl 6369280 0
cfg80211 552960 1 wl
[andy@localhost ~]$ iwconfig
wlp0s18f2u4 IEEE 802.11bgn ESSID:"MySSID"
Mode:Managed Frequency:2.437 GHz Access Point: A0:21:B7:9F:B2:2C
Bit Rate=150 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=39/70 Signal level=-71 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:4 Invalid misc:124 Missed beacon:0
virbr0 no wireless extensions.
wlp2s0 IEEE 802.11abg ESSID:off/any
Mode:Managed Access Point: Not-Associated
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
lo no wireless extensions.
enp1s0 no wireless extensions.
[andy@localhost ~]$ iwlist wlp2s0 scan
wlp2s0 No scan results
从 dmesg 中选择的输出中有几行看起来像是错误：
[ 10.008180] wl: module license 'MIXED/Proprietary' taints kernel.
[ 10.008185] Disabling lock debugging due to kernel taint
[ 10.013608] wl: module verification failed: signature and/or required key missing - tainting kernel
[ 10.036352] eth0: Broadcom BCM43a0 802.11 Hybrid Wireless Controller 6.30.223.248 (r487574)
[ 10.401050] wl 0000:02:00.0 wlp2s0: renamed from eth0
[ 17.512735] AMD-Vi: Event logged [INVALID_DEVICE_REQUEST device=00:00.1 address=0x000000fdf80c0020 flags=0x0a00]
[ 435.635168] ERROR @wl_dev_intvar_get : error (-1)
[ 435.635174] ERROR @wl_cfg80211_get_tx_power : error (-1)