AppGallery not working throught 3G


I have the following issue that I would like to ask if anyone else has noticed.

When I'm connected to Internet through 3G (and I can access the internet through the browser and also read my emails) I cannot access the contentes of the AppGallery.

If I connect through Wifi it works fine, I can access the contents nd download the apps.

Can anyonelese check this please?

Many thanks

Best Regards