Photon Setup Failed at "Verify Product Ownership"

I have received a further 4 Photons today. Just tried the first one and I get the same issues - fails at the last step of the app based setup.
Clearly an issue with my network (that I do not see with the Core’s). I sent a support ticket on Sunday to ask if someone could Skype me to walk through this, with no response so far. I now have 14 Photons and some customer orders with no workable chips, so keen to get to the bottom of this, though a little disappointed as the Core did not work in some places and I deferred for the Photons, but looks like I am in the same situation.

I really need some Spark support here.

Thank you