I'm a little confused. You said you bought a wifi extender, but connect to it via Ethernet. Please clarify the network connection for this computer.
If you temporarily move this computer into the same room as your router, what are your network speeds then?
Also, note that Ethernet cables are cheap, flimsy, easily damaged but critical network devices. Try a different cable.
If you temporarily move this computer into the same room as your router, what are your network speeds then?
Also, note that Ethernet cables are cheap, flimsy, easily damaged but critical network devices. Try a different cable.