Add Rally Bar Mini to Sync - Problems

Hi Sync community, I've purchased and setup a Rally Bar Mini as a Teams Room. All works nicely. I'd like to setup Sync so that I can remotely configure the Rally. I've created the Sync login, installed the Sync Software and can see the Room I've created. However when it comes to adding the device I'm struggling... can I add the Rally device without connecting via USB? The dice is on the wall, with it's cable cover fitted, and it would be so good to simply remote add the device somehow. Thanks.