Then the customers try use WPA2 security mode nobody can connect APs, But the Open encryption and WEP works fine.The customer wants to know the root cause of the problem ？
After confirmed with the customer, the root AP connects to the WAN interface of AR200 device. But confirmed with R&D that the WAN interface doesn't support WPA2 protocol now. The reason is that WPA2 protocol is L2 packets, but in the current version, the WAN interface is L3 interface, so when the WAN interface receive WPA2(EAP packets), the AR200 device considers the packets are not IP packets, and then drops the WPA2 packets,so that WPA2 authentication always failed. The root AP need to connect to the LAN interface of AR200 device.