On my existing Katello installation I somehow screwed up all the certificates, as one does. I built a new Foreman server (without Katello) and I'm moving the clients over. I'm not using Puppet except on the Foreman box itself, just Ansible.

When I try to import an existing machine into the new Foreman box it fails. I tried Hosts > Register Host and pasting the command into the VMWare guest, and I tried Infrastructure > vSphere > Virtual Machines > Actions button > Import as managed Host. Both fail.

Based on the logs I suspected Foreman didn't understand the VM's network connection, even though I had already created the Subnets in Foreman. I created a new Host in Foreman on one of the other subnets (didn't even power it on) and then I could import machines on those networks.

The error is:
2024-08-11T19:04:40 [W|app|a6b4e900] Failed to create a compute vSphere (VMware) instance emby.example.net: Unknown Network ID:
a6b4e900 |

The code is at https://github.com/theforeman/foreman/blob/develop/app/models/compute_resources/foreman/model/vmware.rb line 507, but I'm not sure what that's doing there or how to fix it.

I'll attach the relevant logs, let me know if you need anything else. Thanks.