Ethernet offers better speed compared to WiFi.
Ethernet offers better speed compared to WiFi.
I was using a 100Mb Fibre connection and recently upgraded to 500Mb. I’m running an Asus ZenWifi XT8 Mesh Wifi system (two units) with a Cat6 ethernet link. The main router sits at the front of the house, linked directly to the Fibre box, then to a wall port. The secondary mesh node connects from the back of the house. When I connect my phone to the main router, I get 540Mb download speed nearby. At the secondary node, with my phone nearby, it drops to about 450Mb—unexpected. My PC connected directly to the secondary node only receives around 400Mb, while the main PC still gets 400Mb when plugged into the wall port that feeds back to the primary router. When I connect the mini PC straight to the main router, it shows 350-400Mb downloads. If I use a mini PC directly to the wall port, which leads back to the primary router, I still see 400Mb. My phone remains at 540Mb from the main router. I ran OpenSpeedTest Server on my main PC to check bandwidth to the mini PC—it reported over 850MB. It seems cables are intact, even after replacement and professional installation, and the routers themselves appear functional. Could it be a software setting issue? Since no QOS is enabled, it’s possible the problem lies elsewhere.
Solution found. Although QOS wasn't initially configured, it was activated. After disabling it, all hardwired connections received speeds above 540 Mbps. Devices linked via the secondary node also experienced faster Wi-Fi performance. The OpenSpeedTest Server now reports 980Mb of available bandwidth.