I too was facing the same issue and on running "systemctl start NetworkManager", it said no unit found. Hence I resolved it by creating a networkmanager.service file in /etc/systemd/system/multi-user.target.wants/ .
My guess (as I novice myself) is that you can't use NetworkManager AND netctl at the same time.Post 'systemctl list-unit-files' to see which services you have activeAlso netctl won't start because you have the interface already up.'ip link set wlp3s0 down' to bring it down.
groudie wrote:I had some wifi issues after a recent update and this is how I solved it. It may or may not work for you.https://bbs.archlinux.org/viewtopic.php … 5#p1452785Thank you! It worked. I did not have network manager installed so I booted back up and arch-chroot back into my system, installed networkmanager. Then I rebooted, disabled the netctl and started networkmanager and set it up.
Network and Xorg issues sounds to me like you did too much in one go.https://wiki.archlinux.org/index.php/Be … leshootingCheck the connection, check the driver status and load the module: https://wiki.archlinux.org/index.php/Ne … figurationIf the network interface doesn't show up (eth0), read this part: https://wiki.archlinux.org/index.php/Ne … Interfaces