Iphone edge client sometimes suddenly disconnects

Good day.

I did install Iphone edge client App version 1.0.3.

 

I do connect to my firepass server via wi-fi.

 

Then i press block button on my Iphone.

 

When I unblock it later I see that connection is lost and there is no VPN connection.

 

It's bad. I would like it to be always connected. Is there any possiblity to do it?