Continious "Unable to connect to network" in Photoshop Lightroom 3.3 (the Cloud based version)

I'm getting a contunual "unable to connect to network" when using PS LR 3.3 as below;

This happens after perhaps a few (say 50) photos upload, then the rest don't, even when left overnight etc.

I've tried;

- uninstall / reinstall

- delete sync issue photos using the web interface

- delete Adobe CC based app and installed the app gain from App store

- connecting direct to router via cable

It's making the product unusable and can anyone offer help or do I need to open some sort of Ticket with Adobe ?

Thanks, system and build details below.

P