HA install hangs - how do I break in to find the issue?

Inserted SD with HA image into a pi2, wired connect to home router.
It starts
After a minute or so the white screen with HA logo appears on console
A bit later I can http to hassio.local:8123 to see the web page …preparing …
Many hours later no progress.
A ping shows an ipv6 fe80:: address.


Do you mean hassio?

If so, can you plug the pi into a screen?

Yes I do mean hassio.
I have a screen and keboard connected. The screen just shows a white background with the HA logo in the middle.
Thx for responding