I just installed Ubuntu on my old Macbook, and I'm not able to connect to WiFi. Nearby networks do appear, but when I try to connect to any network, I receive the error message "Connection failed -- Activation of network connection failed."
lspci shows:
02:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4321 802.11a/b/g/n [14e4:4328] (rev 03)
iwconfig shows:
wls4 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
lo no wireless extensions.
ens5 no wireless extensions.
I followed the instructions here (Installing Broadcam Wireless Drivers) to uninstall and re-install the bcmwl-kernel-source package without success.
I know this has been asked a lot, but after searching through previous questions/answers, I'm not sure what else to try.
Thank you!
EDIT:
lspci -knn | grep Net -A3; rfkill list shows:
02:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4321 802.11a/b/g/n [14e4:4328] (rev03)
Subsystem: Apple Inc. AirPort Extreme [106b:0088]
Kernel driver in use: wl
Kernel modules: ssb, wl
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
