Question: I want to configure my other routers as Access Points
Scenario: All (3) EPG600 have the same device IP address, so the EPG600 that you want to set up as access points should have different IP addresses but on the same IP scheme.
On the (2) access points access the router management
Click Network settings page,
Go to system, then LAN
Change the IP address (e.g. from 192.168.0.1 to 192.168.0.2).
Disable the DHCP server then click Apply
Go to Firewall click Basic and set the firewall to disable then click Apply
Go to Advance, click NAT and set the NAT to disable then click Apply
Finally, the Ethernet cables should be connected from the LAN ports on the main router to the LAN ports on the access points not the WAN.