Regarding the WiFi speed of Flint running version 4.x

Technical Support for Routers
1

I have tested 4.1.0 Release 6 and 4.2.0 Beta 2. But the 5Ghz WiFi speed will not exceed 300Mbps, Both versions are like this.

2

I am getting 500mbps + on mine. But 4.x firmware wifi performance is not as great as 3.214.