You don’t have to post just tells us by my suggestion on your Mac option key clicking the wi-fi symbol will give you the channels and speed your Mac is receiving!
I’m convinced that you won’t get true 5ghz speeds unless your 5ghz channels are in hundreds range!
Its showing, Channel: 11(2.4 Ghz, 20 Mhz), RSSI: -50 dBm, Noise: -100dBm, Tx Rate 216 Mbps, Phy Mode: 802.11n, MCS Index: 23
Can you please also look at the screenshots i posted above and let me know if all the settings are what they should be, My brother messed around in the AirPort utility app and i now have anxiety that he might played around with the settings. Does it look like everything is configured the way it should be from the screenshots i posted?
By the way, ever since i got my AirPort Extreme (AC Model) several years back, I Never connected my devices to the 5GHz network because i don't like the range 5Ghz provided from the AirPort Extreme, If i was to DISABLE 5ghz Mode(Is that even possible), will the 2.4 Ghz mode give out a stronger output or it won't make any difference and i should just leave 5ghz mode enabled?