slow wifi speed

Hi guys, I have a TP Link Archer C9 router and a TP Link AX3000 Wifi card (Intel Wifi 6 AX200). I'm connected via the 5Ghz band, the router is positioned in the centre of the house on the floor below and the PC is in a room just above. I get 5 bars for signal strength in Windows but my...

I have been trying to figure out why my desktop gets such bad connection while my phone is fine. Using Speedtest by Ookla my pc scores a "46mbps" while my phone scores a whopping "460mbps" yes they are both measured using the same unit. Another computer that we have down stairs gets a great...