Triode Spotify Plugin Unable to start streaming from Spotify (OS X firewall disabled)

Any advice appreciated on me having not set this up properly
Works great for some time but then cannot get it to work.
Have had to disable the firewall in the past to get it to work (on OS X 10.8), despite spotifyd being set to allow incoming connections in firewall options.
I assume spotifyd is the actual plugin, or is that the actual 'self-test' application?
Cheers.
Got The message below after i'd disabled the firewall:-

Helper App Running
Helper App Running
PASS
Logged In
Logged In
PASS
Spotify Metadata OK
Spotify Metadata OK
PASS
Streaming from Spotify Failed
FAIL

Unable to start streaming from Spotify - check connectivity to Spotify