AI Companion (A14) not reflecting Viewer (W11)

I've put this as a bug - hopefully it's not just my idiocy
I'm creating an app which will run an arduino via bt, but am still in the fairly early stages

My problem is that there seems to be a link problem between my android phone (running Andoid 14) and my viewer (laptop running W11)

Before I go into any detail, (happy to, but lengthy), has anyone else had a problem with this combination, please?

Please go into detail....blocks, screenshots, code.....