Now I have no wifi anymore, I think since an update in December. It is possible that I installed all updates, and put the laptop in a cupboard for a month.
Now the interface is available in Network Center, but it sees no networks. (There are plenty, here). It does not show up in 'ifconfig', but it does in 'ifconfig -a'.
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# ifconfig wlp3s0 up
SIOCSIFFLAGS: Operation not possible due to RF-kill
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# rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: compal-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no
2: compal-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
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# lspcidrake -v | grep -i net
wl : Broadcom Limited|BCM4312 802.11b/g LP-PHY [NETWORK_OTHER] (vendor:14e4 device:4315 subv:1028 subd:000c) (rev: 01)
r8169 : Realtek Semiconductor Co., Ltd.|RTL8101/2/6E PCI Express Fast Ethernet controller [NETWORK_ETHERNET] (vendor:10ec device:8136 subv:1028 subd:02c6) (rev: 02)
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# journalctl -b -u network --no-pager -a
-- Logs begin at Thu 2015-09-10 20:31:42 CEST, end at Sat 2018-01-20 14:26:32 CET. --
Jan 20 14:12:11 localhost systemd[1]: Starting LSB: Bring up/down networking...
Jan 20 14:12:12 localhost network[1150]: Bringing up loopback interface: [ OK ]
Jan 20 14:12:12 localhost network[1150]: Configuring wireless regulatory domain [ OK ]
Jan 20 14:12:13 localhost network[1150]: Bringing up interface enp0s29f7u1: ERROR : [/etc/sysconfig/network-scripts/ifup-eth] Device enp0s29f7u1 does not seem to be present, delaying initialization.
Jan 20 14:12:13 localhost network[1150]: [FAILED]
Jan 20 14:12:14 localhost network[1150]: Bringing up interface wlan0: ERROR : [/etc/sysconfig/network-scripts/ifup-eth] Device wlan0 does not seem to be present, delaying initialization.
Jan 20 14:12:14 localhost network[1150]: [FAILED]
Jan 20 14:12:15 localhost systemd-sysctl[1412]: Couldn't write '0' to 'net/bridge/bridge-nf-call-iptables', ignoring: No such file or directory
Jan 20 14:12:15 localhost systemd[1]: network.service: Control process exited, code=exited status=1
Jan 20 14:12:15 localhost systemd[1]: Failed to start LSB: Bring up/down networking.
Jan 20 14:12:15 localhost systemd[1]: network.service: Unit entered failed state.
Jan 20 14:12:15 localhost systemd[1]: network.service: Failed with result 'exit-code'.
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# systemctl status network.service -a
● network.service - LSB: Bring up/down networking
Loaded: loaded (/etc/rc.d/init.d/network; generated; vendor preset: enabled)
Active: failed (Result: exit-code) since Sat 2018-01-20 14:12:15 CET; 19min ago
Docs: man:systemd-sysv-generator(8)
Process: 1150 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)
Jan 20 14:12:12 localhost network[1150]: Configuring wireless regulatory domain [ OK ]
Jan 20 14:12:13 localhost network[1150]: Bringing up interface enp0s29f7u1: ERROR : [/etc/sysconfig/network-scripts/ifup-eth] Device enp0s29f7u1 does not seem to b
Jan 20 14:12:13 localhost network[1150]: [FAILED]
Jan 20 14:12:14 localhost network[1150]: Bringing up interface wlan0: ERROR : [/etc/sysconfig/network-scripts/ifup-eth] Device wlan0 does not seem to be present, d
Jan 20 14:12:14 localhost network[1150]: [FAILED]
Jan 20 14:12:15 localhost systemd-sysctl[1412]: Couldn't write '0' to 'net/bridge/bridge-nf-call-iptables', ignoring: No such file or directory
Jan 20 14:12:15 localhost systemd[1]: network.service: Control process exited, code=exited status=1
Jan 20 14:12:15 localhost systemd[1]: Failed to start LSB: Bring up/down networking.
Jan 20 14:12:15 localhost systemd[1]: network.service: Unit entered failed state.
Jan 20 14:12:15 localhost systemd[1]: network.service: Failed with result 'exit-code'.
Any advice?