Pc kills wifi connection.

You'll have to give more information.
  • What is the 'correct' speed?
  • What speed is it actually running at?
  • Have you checked the NIC configuration in Windows (assuming Windows, you haven't mentioned) (IP, subnet, duplex, port speed etc)?
  • What do you mean by 'kills wifi'? Wifi on the device, or wifi around the home?
Without more details I might was well take a wild guess at an IP conflict.
Windows 11 system
Correct speed is between 58 and 63 mbps and pc is on ethernet and have other devices on WiFi and they are getting about1.8mbps when pc is turned on even with the ethernet cable unplugged. I'm unsure of other details.
Thanks for the help.
 
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
 
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