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eth0 requires restart after suspend/resume (systemd/dhcpcd)

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https://bbs.archlinux.org – My work computer has the annoying quality of needing the eth0 interface restarted (ifconfig eth0 down && ifconfig eth0 up) when I resume the computer from being suspended. I'm using systemd as my init system and networking is simply managed by dhcpcd@eth0.service. I have almost the same setup at home and I don't have this problem. The main differences are that the work computer also has NetworkManager installed (possible shared computer, need Gnome just in case) but NetworkManager.service is disabled; this computer connects via a proxy (shouldn't matter); and the hardwar (HowTos)