@Infotech Is there any particular reason to have the TL-WR1043ND set as a secondary router in your LAN ? If you set it in AP mode (Case 2) all devices will be within the same subnet, thus avoiding...

@HomeNotifier Well, if you have a duplicate entry the error message is very reasonable to appear. If you insist to put a description for the duplicated (disabled) entry in question try the following:...

@DigitalSunflow If the routers were connected the other way round (C50 as a secondary router) then restricting remote access from the same menu will prevent other router's clients to access C50...

@DigitalSunflow There's no other mechanism than that you already found in System Tools => Administrator settings (this location depends on your FW release). Since the C50 is the default gateway for...

@juju-fr Use Chapter 5 from your user guide to configure C80 in AP mode. If I recall correctly the LAN IP address is set as SmartIP(DHCP) when setting the device in AP mode. So to be able to find its...

@DigitalSunflow If you want to restrict local management access of C50 you can do that from here: Thus only the device with the MAC address configured can make administrative changes to the C50.