New modem/router isn't connecting via Ethernet on your PC, though it functions with other devices.
New modem/router isn't connecting via Ethernet on your PC, though it functions with other devices.
Everything functioned well before with my previous internet setup and modem/router. Recently I moved to a new provider and installed the SBG8300 modem/router combo. The Wi-Fi is working fine, and the Ethernet cable connects properly on another laptop. However, my PC isn’t receiving any signal from it. In the control panel, the Ethernet port shows as unplugged. I’ve tried most troubleshooting steps online, but no one seems to have encountered the same problem. I’m considering a compatibility issue between my modem and the Ethernet controller. I own the Killer E2200 Gigabit Ethernet controller, but it appears Intel has stopped supporting this model, so no drivers are available. I’m seeking advice from others who might understand what’s going on. Thanks!
Hi, here are the troubleshooting steps you've attempted:
1. Checked for driver issues—uninstall and reinstall the driver via Device Manager, removed the Ethernet port, restarted the system, and let Windows reinstall it.
2. Possibly the Ethernet port failed (occurs occasionally).
3. Also tried restarting in Safe Mode with networking, which might indicate a virus or third-party software causing the problem.
I managed to reinstall the driver and followed all the steps—turning things on/off, resetting the network, updating drivers, using the Windows troubleshooter, checking online guides for Ethernet issues. I even tried different cable types and settings. One suggestion was to adjust the speed and duplex settings away from auto negotiation. It seems my connection works best when I set it to 10Mbps full duplex or half duplex. However, whenever I change the settings, the cable appears to be disconnected. No solution has been found online except possibly using a PCI-E Ethernet adapter. I’m still trying to understand what these settings do and why they matter.