Two question/requests:
- Is netconf enabled on the Juniper device? You can use the junos_netconf module to enable it: junipernetworks.junos.junos_netconf module – Configures the Junos Netconf system service — Ansible Documentation
You can see how I use it here: https://github.com/ansible/workshops/blob/4c1bce058c55c435766a99dc5528b4fa1e1b1d3f/roles/configure_routers/tasks/juniper_default.yml#L19
- Can you re-run your playbook with -vvvv (4 vs) so I can see what it is doing for the connection?