WizFi210 Auto connection Issue

Question

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 !!!

ssekim · Answer

Here is my test logs. AT+WD [OK] AT+XDUM=0 [OK] AT+WWPA=12345678 [OK] AT+NDHCP=1 [OK] AT+NAUTO=0,1,192.168.3.114,4000 [OK] AT+WAUTO=0,WizFiDemoAP [OK] AT+XAR=20 [OK] AT&Y0 [OK] AT&W0 [OK] ATA IP SubNet Gateway 192.168.3.109: 255.255.255.0: 192.168.3.1 [CONNECT 0] [OK] Then I turned off the AP and the association was lost. And after some times, the module reconnected to the TCP server. [Disassociation Event] APP Reset-APP SW Reset [ERROR] IP SubNet Gateway 0.0.0.0: 0.0.0.0: 0.0.0.0 APP Reset-APP SW Reset [CONNECT 0] IP SubNet Gateway 192.168.3.102: 255.255.255.0: 192.168.3.1 Be note that AT+XAR=5 is too short, so some trouble can be occurred.