Netgear N600 WNDR3700v5 WIFI speed

[shwaycool]

My ISP provides 300 mbps.  

When I connect a LAN from the computer to the router I get 300 mbps but when I use the WIFI I only get 150 mbps.  

My wireless set up is 5Ghz, enable SSID, and WPA2-PSK with mode "up to 300 mbps", Channel is Auto'

my firmware is uptodate.

 THanks for your help.  

[DarrenM]

What wireless device are you connecting that only gets 150?

DarrenM

[shwaycool]

A 2016 iMAC.

[DarrenM]

have you tried to change the channel to the best channel using a wifi analytics app?

https://kb.netgear.com/25182/Resolving-poor-5GHz-wireless-range-signal-from-my-NETGEAR-router

DarrenM

[shwaycool]

I just tried that.  I'm actually the only one on my channel.  My width is 40 MHZ.  It says my signal is 99% but still my speedtest is only 180 mbps.  Anything else you can think of other than LAN?