You are missing the gateway.
You must have something like that:
network:
ethernets:
ens18:
dhcp4: no
addresses: [192.168.1.117/24]
gateway4: 192.168.1.1
nameservers:
search: [example.com]
addresses: [192.168.1.100,192.168.1.104]
version: 2
Would someone mind checking this suggested edit? I realize I should have first, but after reviewing it, I’m less sure. I think I made the right choice, but after seeing a reject vote I’m less sure askubuntu.com/review/suggested-edits/1320552
@BeastOfCaerbannog Maybe it would work that way or maybe it wouldn't. Either way I think the question should be reopened and then let the community decide what to do.