All experts here, I had been reading this thread for sometime after I had gotten by upgrade from Unifi to 500mbps. Obviously, 500mps is not a guarantee speed depend on the Router types, Notebook wireless adapter type etc.
For my case, I am getting the following speed for my devices:
Wireless Router: Asus RT-AC58U
Wireless Speed Test (5G):
Mobile Phone Samsung Galaxy Note 8: 340 mbps (average)
Notebook Lenovo Thinkpad X series (older model): 140 - 150 mbps (average). After reading a guidance thread, I bought a USB 3.0 wireless adapter (Tenda U12) and tried, I see no improvement in download speed.
My question is, why my laptop download speed is so slow comparing to my mobile phone? I did use a LAN cable (Cat 5e) and tried the speed test, it's even slower than the wireless speed. Quite weird right?
probably because your laptop dint have gigabit ethernet lan, just normal 100mb ethernet lan