So, I had tried to setup Static IPs, since my router only allows IPv4 Leases it seems, The following is my 01-netcfg.yaml file, modified from each server setup to TRY and use Static IPv6 as well as the eno1 output from ifconfig from each The issue is, sometimes the DHCP Lease doesn't take place, and it causes communication issues between my servers. I add the extra user for each of the ::7 and the ::9 ending ones during setup... but as I said, the DHCP lease doesn't always seem to take place, so indeed you might ascertain that this could be quite frustrating to a novice. Maybe I'm just missing something, or I really should invest in a better router and put my modem/router combo into just modem bridge mode? Any suggestions in that case for an inexpensive, and effective router. Possibly one that supports DD-WRT/OpenWRT, or a very exstensive default Code: cashman@miyagi:~$ cat /etc/netplan/01-netcfg.yaml # This file describes the network interfaces available on your system # For more information, see netplan(5). network: version: 2 renderer: networkd ethernets: eno1: dhcp4: no dhcp6: no addresses: [192.168.0.26/24, '2607:fcc8:fe90:4600::1/64'] gateway4: 192.168.0.1 gateway6: fe80::2a56:5aff:fed6:f912 nameservers: addresses: [1.1.1.1,1.0.0.1,8.8.8.8,8.8.4.4] eno2: dhcp4: yes dhcp6: yes addresses: [] gateway4: 192.168.0.1 gateway6: fe80::2a56:5aff:fed6:f912 nameservers: addresses: [1.1.1.1,1.0.0.1,8.8.8.8,8.8.4.4] optional: true Code: cashman@miyagi:~$ ifconfig eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.26 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 2607:fcc8:fe90:4600:222:19ff:fe20:980f prefixlen 64 scopeid 0x0<global> inet6 2607:fcc8:fe90:4600::1 prefixlen 64 scopeid 0x0<global> <<<--- Static IP from 01-netcfg.yaml inet6 2607:fcc8:fe90:4600::7 prefixlen 128 scopeid 0x0<global> <<<--- DHCP assigned inet6 fe80::222:19ff:fe20:980f prefixlen 64 scopeid 0x20<link> ether 00:22:19:20:98:0f txqueuelen 1000 (Ethernet) RX packets 202780 bytes 46396065 (46.3 MB) RX errors 0 dropped 137 overruns 0 frame 0 TX packets 216401 bytes 42154889 (42.1 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 Code: cashman@daniel-san:~$ cat /etc/netplan/01-netcfg.yaml # This file describes the network interfaces available on your system # For more information, see netplan(5). network: version: 2 renderer: networkd ethernets: eno1: dhcp4: no dhcp6: no addresses: [192.168.0.27/24, '2607:fcc8:fe90:4600::2/64'] gateway4: 192.168.0.1 gateway6: fe80::2a56:5aff:fed6:f912 nameservers: addresses: [1.1.1.1,1.0.0.1,8.8.8.8,8.8.4.4] eno2: dhcp4: yes dhcp6: yes addresses: [] gateway4: 192.168.0.1 gateway6: fe80::2a56:5aff:fed6:f912 nameservers: addresses: [1.1.1.1,1.0.0.1,8.8.8.8,8.8.4.4] optional: true Code: cashman@daniel-san:~$ ifconfig eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.27 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::221:9bff:fe8c:389a prefixlen 64 scopeid 0x20<link> inet6 2607:fcc8:fe90:4600::2 prefixlen 64 scopeid 0x0<global> <<<--- static IP from 01-netcfg.yaml inet6 2607:fcc8:fe90:4600::9 prefixlen 128 scopeid 0x0<global> <<<--- DHCP Lease inet6 2607:fcc8:fe90:4600:221:9bff:fe8c:389a prefixlen 64 scopeid 0x0<global> ether 00:21:9b:8c:38:9a txqueuelen 1000 (Ethernet) RX packets 19740 bytes 12890425 (12.8 MB) RX errors 0 dropped 137 overruns 0 frame 0 TX packets 41754 bytes 3633093 (3.6 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0