Recovery notification timing

I use Recovery like below.
_warpClientRef->setRecoveryAllowance(60);

When I use iPhone simulator, after connected, I turn off the network on my Mac, but onConnectDone wasn't called.
Then I turn on the network, onConnectDone was called, and I can recover.

But I have to inform user the network is lost at that time, not after network back.
How to achieve it?

Thanks a lot!
