So, what works works well, but I'm seeing inconsistent issues with certain hosts not being able to reach each other. UDP Hole punching, while on by default, is disabled everywhere, though I have tried enabling it to see if it makes a difference. Out of 4 hosts, none can see all other hosts, but most can see one or two of the others. I've tried restarting some of the hosts as well as the Netmaker server itself, and it's all just inconsistent. It feels like NAT stuff, but one time two devices on the same network couldn't see each other but could see outside devices, then after rebooting both they see each other, but not outside devices.