I am using APNS service in my universal app (iPhone/iPad) and i am not geting notifications on device. Previously i was getting notifications perfectly but now a days with the same code at server side and client, it is not working. On server side notification status is delivered but i am not receiving it on my device.
I have checked most of the questions on stackoverflow but i was unable to find my question. one guy said that in development environment it may have delays, but my problem is that i am not receiving notifications at all.
Note: i am using sandbox environment not production.