How to troubleshoot if initial install network configuration never works?

IncusOS
1

Previously ran into problems with the speed detection not working, which you fixed in a more recent version. However I still keep running into problems booting after initial install fails on first a time sync fail (warning) and then a failing nslookup when trying to check for OS updates.

nslookup error
nslookup error958×719 66 KB

(ID top left removed)

A similar network configuration under Ubuntu (netplan)/ Debian does work normally on the same machine.

interfaces:
- name: "ens3f1"
  hwaddr: "redacted"
  addresses:
  - "10.0.32.10/22"
  routes:
  - to: "0.0.0.0/0"
    via: "10.0.35.254"
  required_for_online: "ipv4"

dns:
  nameservers:
  - "1.1.1.1"
  - "8.8.8.8"

time:
  timezone: "Europe/Amsterdam"

Working netplan under Ubuntu

network:
  version: 2
  ethernets:
    ens3f1:
      match:
        macaddress: "redacted"
      set-name: "ens3f1"
      addresses:
        - 10.0.32.10/22
      routes:
        - to: default
          via: 10.0.35.254
      nameservers:
        addresses:
          - 1.1.1.1
          - 8.8.8.8
      dhcp4: no
      optional: false

How would we go about troubleshooting this without a local shell ?

2

Does the IP address respond to ping?
Is that a physical system or a VM? Could there be port security / MAC filtering going on at the network level?