Hi I'm unsure of network card as only have wired connection here are specs
asus b550 f gaming, ryzen 5 5600x, ddr4 16 gb 3600mhz ram, 500g m.2, vision rtx 3060ti, phanteks psu 750w, lian li galahad 240mm aio, lian li sl 120 fans, 011d mini Snow White.
When i start my pc up the Internet is fine for a minute or two and then all connections wireless and wired run at about 1.7-2.8 mbps. I even disconnected the ethernet from pc and it still caused this issue
Thanks