I have a D-Link wireless router with four ethernet ports. I have two Wireless Access Points enabled on my router. If I connect say PC1 and PC2 to two of the ethernet ports it can ping each other. If connect both PC1 and PC2 to AP1 it can ping each other. Similarly when I connect both to AP2 it can ping each other. But If I connect PC1 and PC2 on two different APs or one to an AP and other to ethernet then It cant ping each other.
The IP of Router = 192.168.1.1
The IP of PC1 = 192.168.1.2
The IP of PC2 = 192.168.1.5
They are static IP addresses
I have unchecked "Configure the second IP Address and Subnet Mask for LAN" which comes under Local Network settings in the router and I have turned the setting "User Isolation" to "off" for both the Wireless Access Points. But still the problem persists. What is the reason? How can I solve this problem so that I can ping all the PCs which is connected to other APs or ethernet of the same router?