What is the VPN Connection Authentication Popup on iOS?
This popup shows if your iOS device was turned off while you were connected to VirtualShield VPN. This is a completely standard popup, all you have to do is click "Cancel" and the VPN connection will automatically re-connect, allowing you to continue to use your device normally.
NOTE: If you try to enter your VirtualShield password, it will not work.
The popup dialogue may look something like this: