Hello, I have my internet speed 400/20 whcih is got my my wifi 5G but those electronics connected through Ethernet I did not get the speed I get max 200/20 I reset the routher twice and and update the

Hi, I just purchased this router yesterday, so I can upgrade my home network. So far the Wi-Fi seems to work fine. However, there's a limitation over LAN with a specific device. I'm currently working