Fast downloads but slow uploads are common.
Fast downloads but slow uploads are common.
Your ASUS network card is delivering higher download speeds than upload, which is unusual. The discrepancy might be due to network congestion, firewall settings, or device limitations. Testing on other devices shows lower performance, suggesting the issue could be specific to your PC or environment.
Are there any gadgets connected via Wi-Fi? It's conceivable (though improbable considering the limited speeds) that Wi-Fi might be limiting your connection, and this could vary between devices because of varying signal strengths and performance levels, plus certain Wi-Fi setups working better than others.
I conducted the speed tests using my phone in the same space as my PC; my laptop was able to detect up to 18Mbits in that area.