[8.930][BUG]Auth Agent not working with beta

I built a test profile using 'Authentication mode: Agent' and started the Agent, but my attempt to access anything returned:

While trying to retrieve the URL:
Authentication Failed

Access is denied due to the following condition:
The URL you have requested is blocked by Surf Protection. If you think this is wrong, please contact your administrator.

Interestingly, there was nothing about this in the logs; Web Filtering and User authentication daemon show nothing. I retyped my password to be certain it was correct and tried again - same problem.

Cheers - Bob