Can't see the ads on my Windows 8 app (Microsoft Advertising SDK)

Question

I developed two windows 8 application, I published them to the store, On Pub Center I created two applications and some ads units,

All Ads units are displayed on the first one, and not on the second application (same configuration).

any ideas ?

Answer 1

I forgot to check the Internet Client on the Capabilities tab in package.appxmanifest file.