Hi,
This is my current setup

TP Link Archer C9
TP Link Powerline AV1300 Wifi Kit (TL-WPA8630P)
Ethernet Cable : CAT 5E on from Modem to Router, Router to PowerLine and Powerline to Desktop PC.

Time Broadband Plan - 500 MB.
Currently I have 4 WiFi, and the current result tested as below:

TP Link Archer C9 - 2G Wifi
Download: 25 MB Upload: 25 MB
TP Link Archer C9 - 5G Wifi
Download: 30 MB Upload: 25 MB
TP Link Archer C9 - Cable (Direct)
Not tested.

PowerLine - 2G Wifi
Download: 85MB Upload: 80MB
PowerLine - 5G Wifi
Download: 188MB Upload: 180MB
PowerLine - Cable
Download: 185MB Upload: 160MB


It seems that the wifi results on Archer C9 are very low comparing to Powerline, although the router is just beside me. I can't make a direct connection to Archer C9 as my router is located on top of my doorstep.

I am aware that WiFi is slower than Cable.

I am wondering what went wrong on my wifi settings on Archer C9?