Gemtek MiniHub not connecting to Community Thingpark

Gemtek MiniHub not connecting to Community Thingpark

Hello,

We bought from Thingpark Market a Gemtek MiniHub base station for which we setup the WiFi (solid green light on the base station LED), however it stays in "Initialization" state on the community Portal.

Do you know how we might fix the issue ? 
Thank you for your help.