Application crashed in the local network

We have a serious issue while deploying our product to the ipad. Our network will not allow to access internet. While the application deployed to the ipad and connect to the local network, the application takes few seconds/minutes for popup and the crashed immediately.Could anybody have this issue please help me to find a solution.Our WiFi is enabled only for internal network access

STEPS TO REPRODUCE

1. Fresh installation of ipad

2. Installed our application

3. Wiifi is without internet

4. Started the app and it crashes crash contains error "Failed to

launch in Time"

PLATFORM AND VERSION

iOS 7.1, iOS 8.1 etc

Ipad Mini, Ipad Air

Thanks & Regards,

Celus berchmans Olayam

Phone : +81-80-4801-6547