Connect again after a stop of the AP

Hello,
I Use a WizFi220 in TCp-Server mode (software V1.1.1.0).
The AP is a router (not a WizFi), I sent these lines to Wizfi :
AT+WWPA=12345678
AT+NDHCP=0
AT+NSET=192.168.0.123,255.255.255.0,192.168.0.1
AT+WAUTO=0,WizFiDemoAP,6
AT+NAUTO=1,1,8011
AT&W=0
ATA
It works well even if I cut the power supply on the WizFi, after power returns the WizFi starts again.

The problem is if the AP stops, WizFi disconnect and after the AP starts again the WizFi does not connect it self to the Wifi network, I have to write ATA.

How is it possible to make the WizFi connect it self in this case ?

Thanks.

Sorry.
There is no way to do that with Wizfi220.