I just got Unraid so I suspect I'm missing something trivial but I'm unable to access it through the Tailscale IP.
I can access unraid with the local url still but not via the tailscale one, diagnostics attached.
The machine appears as connected in the Tailscale dashboard.
Additionally, I have Tailscale running on the same network on a Synology NAS, in case that is somehow relevant.
EDIT: Never mind it's working now, for reference, following the steps from Todo88's post worked for me as well.
Tower Tailscale Diag 20240122.zip