iPhone 5(iOS 6.1.2),Exchange email (gmail) - Unable to receive mail

Hi, first i want apologize for my english, im not very good at it.

 

I want set up push gmail on iPhone 5 (only way is through Microsoft Exchange in Setting-->Mail,Contacts, .... ).

 

Setting of email is 100% all right (same setting works on iPhone 4) , but when i open Email will only jumps notice "Unable to receive mail" and i think its not problem only with email, because i can't get also contacts and calendar.

 

With the same setting all works on iPhone 4 !

 

Can anyone help me please ?

 

Thanks.

 

 

BTW: Same problem have with iPad Mini

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