SMP 3.0 SP07 iOS(APNS) push notification error

Hi Expert,

We are working on Push notification app and we are sending Push notification from Gateway through a Function Module. SMP server is configured with Apns certificate and Proxy server details in SMP admin cockpit As our SMP is configured to connect to APNS via a Proxy server. All required port like 2195,2196 are already opened. but we are getting below error when we send a push notification from gateway.

SMP Log says

+0100#DEBUG#com.sap.mobile.platform.server.notifications.async.impl.ServletRequestAwareAsyncExecutionInterceptor##anonymous#push-async-7####null#null#null#debug#Push#null#null#3e6904e5-5f7d-48a1-9d20-ef95def3a243#null#1462780098193#null#com.sap.mobile.platform.server.notifications.async.impl.ServletRequestAwareAsyncExecutionInterceptor:logFinally#SMP: Push: End time for processing Push Notification (UTC): 1462783698193#null#729#Notification#1462783633166015#null |

2016 05 09 09:48:18#+0100#ERROR#com.notnoop.apns.internal.ApnsFeedbackConnection##anonymous#push-async-6###Couldn't get feedback connection java.net.ConnectException: Connection timed out: connect

it seems that SMP server is not able to reach to proxy server.

But when we try it from browser it successfully connect to proxy server.

We have already configured Proxy setting in management cockpit and also in Props.ini file by following this blog Enable Proxy settings SMP 3.0 SP07+

Response from browser once gateway.push.apple.com:2195 called

Proxy Error 502

Any help will be appreciated.

Thanks&Regards,

Saurabh