I created a new Connection, using the Auto-config option (I have previously tried Manual-config, but that didn't work either). It runs the "Connection Test" successfully, (all lights are green), it then comes on to the section where it needs to Authenticate the DNAS -- in which it says:

"Authenticating DNAS data..."

That lasts for about 5 minutes (probably a little bit more), once it finished, it says "Completed Successfully". It then shows the loading icon in the top-right of the screen, and after about a further five minutes, it shows the following message:

"Central Station cannot be contacted. Check your settings and retry.
[Ref. SCC]"

What is this all about? Why can it not contact the "Central Station" properly (whereas it runs the Connection Test with no problems)?

I'm open to all ideas .. as long as they don't involve spending money (on a router, for example) -- because I really don't have the cash! :-(