Fix Ubuntu VM Internet on Unraid

I’ve just moved an Ubuntu VM from Hyper-V to Unraid and everything starts correctly except the network: the guest never gets online. I’m using the VirtIO interface inside Unraid and have already double-checked i think wrong adapter is attached, and the VM still can’t see the outside world.this machine is a webserver.

I need someone who knows Unraid’s KVM layer, VirtIO drivers and Ubuntu’s netplan/systemd-networkd well enough to trace where the break is—bridge settings inside Unraid, missing VirtIO driver, netplan syntax, or something else—and get the VM talking to the internet again.

Deliverables
1. Remote session (SSH + Unraid GUI) to diagnose and repair the connectivity issue.
2. Written summary of every change so I can reproduce it on other VMs.
3. Confirmation: the guest obtains an IP, pings the gateway, and resolves external domains.

If you’ve untangled Unraid networking before, this should be a quick win.
all work done via anydesk