Minihub not connecting to ThingPark

Minihub not connecting to ThingPark

Hi, we have bought from you a Gemtek/Browan Minihub gateway

Following your indications, it has been connected to a wifi network
and to the ThingPark with no X.509 certificate and public key as reported

The device is connected to an Android phone hotspot, the cleanest case (no firewall, no network limitations) but it appears on ThingPark in initialization state, it never goes on.

Where is the problem?

Thanks