@NCFocus_Group_4 Hi, Please connect a computer directly to this router and then access to its management page using the domain name, tplinkwifi.net. If it cannot work, you can unplug all other wired...

@Anbar786 Hi, You can download the firmware for Archer MR600 V3 on TP-Link official webpage.

@Davo61 Hi, TP-Link DSL modem does not support the connection method you described. The LAN port is used to connect to the back-end devices and provide internet. It cannot work as an internet backup.

@ZeikeTaylor Hi, Please put the powerline units within one room and pair the powerline units. How to set up a new secure wireless network using Powerline ac Wi-Fi Kit by Pair button

@TonkleChicken Hi, Thanks for your update. Could you please provide me with a screenshot or a shot video so I can better check? Besides, may I know your APP version?

@CrazyDriver Hi, Yes, it will cache DNS queries.