So I just upgraded to 120 Mbps internet. It works fine on all of the devices on the network, I get up to 90-100 on most. However, even connected through an ethernet cable, this specific laptop keeps getting capped at 40 Mbps download speed on speedtest.net. I tried:
Turning off firewalls
Checking to see if anything else was consuming data
Connecting to an ethernet cable. (I get the same speed of about 40 Mbps with and without the cable)
Checking the speed of my connections in Network connections (I'm using Windows 8.1), the ethernet says 100Mbps, and the WiFi says 72 Mbps.
Checking for driver updates in the device manager (although I'm not really sure how that stuff works...)
My computer is a 3-4(-ish) year old Presario CQ42 Compaq. Anything I can do?