low wifi speed

Hello everyone. Forgive me for possible errors in the text, I write through a translator. A question arose about the work of the VPN Director. There are no errors in the logic of its operation, the traffic is redirected as it should. But the speed of WAN, which is the Internet not through a VPN...

Greetings, I have a brand new AC68U in hardware revision V3 with latest Merlin software. I have a AC 1550i wifi card in my laptop and 500/30 Mb/s cable. My wifi connection on laptop and Oneplus phone both report 866,7Mb/s on 5Ghz link yet I cannot go beyond 410-420Mb/s. I tried testing speed...

I’m using an Asus RT-AC1900P router linked via Ethernet (Cat8) bridge to an identical RT-AC1900P and for the life of me I can’t establish a solid WIFi network that will download more than 80Mbps on 2.4 GHz and 200Mbps on 5Ghz on any of my Apple devices (Apple iPhone XS Max and a 4th Gen iPad)...