Keep the "Clear CMOS" button on the back panel pressed during at least 20s. Power off PSU, unplug the power cord and wait that all mobo's leds light off.
reboot then install >Killer Network Driver (driver only)>Killer Wi-Fi Driver (driver only) Result?Ģ/ If problem remains, do a clear CMOS then load default values: Relevant System-Infos (for more pls ask):Įthernet Adapter: Onboard Killer E2500 Gigabit Ethernet Controllerġ/ Uninstall Killer Control Center. Reapplied Duplex-Mode in Driver-Settings.Checked BIOS for some settings (didn't found any).Testet speed just with Wi-Fi 5GHz (LAN deactivated, perfect connection with no other device connected).Tested speed in safe mode in 3 different browsers.Just uninstalled driver and let Windows install a driver on it's own.Swapping Ethernet-Cable with known good (both Cat6).Swapping Ethernet-Ports on my Router (FritzBox 6490 Cable).The following steps I already tested without success: There I got my 400Mbps.Īfter some time of investigating, I noticed that the "Speed & Duplex" settings for the adapter in the advanced settings just goes to 100Mbps (Full-/Half-Duplex), and then directly Auto Negotiation (currently set). So I started a Speedtest on the PC from my wife. Another problem with my X370 Gaming M7 ACK:įor a few weeks, I have noticed that my download speed has halved from 400 Mbps to about 200Mbps.