since I got same problem before with my download speed while my upload speed was goodįor download problem I try to uninstall the Killer network manager. I suspect its Killer E2400 Gigabit Ethernet Controller doing. (For ref: I got 100mbps upload from my isp. HI, i have this laptop with Killer E2400 Gigabit Ethernet Controller service built in.Īnd for these couple of day's my upload speed drop significantly from what it used too.