WA512G works in bridge mode.the Web UI prompt “Error! Subnet is overlaped with Wan.”when modifying LAN IP.

Please follow the steps below to operate：
1、Switch WA512G to router mode and check if the WAN IP is as the same subnet as the LAN IP to be modified；
2、If so, change the WAN IP to another subnet and then switch WA512G to bridge mode;
3、Then, modifying the LAN IP will be successful.