SystemD service is installed and its giving erros for init service, even though its running.
This has serious setup issues. I have purged and reinstalled on both systems. It appears to be an issue.
IPv6 is enabled on both machines.
Try tail -f /var/lib/logmein-hamachi/h2-engine.log
Also check /etc/sysctl.conf and make sure ipv6 is not disabled:
grep 'net.ipv6.conf.all.disable_ipv6 = 1' /etc/sysctl.conf