Problem with connection for ePrint

Hello,

today I brought a new printer - all in one, HP Deskjet INK Advantage 3520. All functions are OK, but i've a problem with ePrint.
Concretely, printer is connecting to my home wifi and I can print without USB cable without any problems. But when I want setup ePrint function, I get a error, that the printer haven't any internet connection and I can't finish configuration of service.

Does anyone know, how I can eliminate the problem?

Thank you,
Denis