Can't add vBond to vManage

[jlunt]

I am currently building a new Viptela lab on version 20.10.1. I am at the stage of adding the vBond controller in the vManage GUI (configuration/devices/controllers), and keep encountering this error:

vBond is reachable from vManage on VPN 0 (and vice versa):

vBond is set to no tunnel-interface, vManage has been set to both for testing, and each time the same error occurs.

Has anyone encountered this before? 

[jlunt]

Managed to add the vBond by adding tunnel-interface to vpn 0 ge0/0, and allowing netconf and SSH on both vManage and vBond. Wierd!