WizFi210 Auto connection Issue

Wi-Fi Module WizFi210/220
1

Hello all,
I try to connect my WizFi210 to a AP and then to PC (AP is connect to PC via LAN cable). I configured WizFi210 using ARM microcontroler, and the communication between them is via UART(serial communication).
The problem is: when I click the (GPIO21) button twice consecutively, the
WizFi210 is restored to factory default setting and changed to <AP & Web mode>. Then I used the following AT commands to connect WizFi210 to AP and PC(to Hercules software):
“ATE0\r”,
“AT\r”,
“AT+WD\r”,
“AT+WM=0\r”,
“AT+WAUTH=2\r”,
“AT+WWEP1=1234567800\r”,
“AT+NDHCP=1\r”,
“AT+NAUTO=0,1,192.168.62.10,3000\r”,
“AT+WAUTO=0,WizFiDemoAP,6\r”,
“AT&Y0\r”,
“AT&W0\r”,
“ATZ0\r”,
“AT+XAR=5\r”,
“ATC1\r”,

“AT+WA=WizFiDemoAP\r”,
“ATA\r”
The LED’s [W_CONN] and [S_CONN] switch ON. When I remove the power of my AP, these LED’s switch OFF. Then I restore the power of AP and I expect my Auto connection to be established ( LED’s [W_CONN] and [S_CONN] must switch ON again). What am I missing? Thanks before !!!

2

Here is my test logs.

Then I turned off the AP and the association was lost.
And after some times, the module reconnected to the TCP server.

Be note that AT+XAR=5 is too short, so some trouble can be occurred.