HP ProBook 450 G10 Ethernet Not Detected Windows 11: Realtek Driver Fix

HP ProBook 450 G10 is a business laptop featuring Realtek Gigabit Ethernet for wired network connectivity. On Windows 11, the Ethernet port is not detected after plugging in a network cable, the Realtek LAN adapter is missing from Device Manager or shows a driver error, or the Ethernet connection shows as unidentified network with no internet access. Wired Ethernet failures on the ProBook 450 G10 have specific driver-related causes that differ from WiFi issues. I have resolved Ethernet detection failures on HP ProBook 450 G10 units and this guide covers all effective solutions.

Why HP ProBook 450 G10 Ethernet Not Detected Windows 11

Realtek Ethernet Controller Driver Removed or Corrupted by Windows Update

HP ProBook 450 G10 uses a Realtek PCIe GbE Family Controller for wired Ethernet. Windows 11 updates sometimes replace or corrupt this driver with a generic Microsoft Network Adapter driver that does not properly support the Realtek PCIe controller. When the generic driver is in place, the Ethernet adapter may appear in Device Manager but show a yellow error or may not appear at all. The HP-validated Realtek Ethernet driver on the HP support page is the correct version tested for the ProBook 450 G10 hardware and resolves these driver compatibility issues.

HP ProBook 450 G10 Ethernet Port Disabled in BIOS

HP ProBook 450 G10 BIOS Setup includes settings for onboard devices including the LAN controller. Enterprise IT administrators sometimes disable the Ethernet port in BIOS for security reasons or to enforce WiFi-only connectivity. If the LAN controller is disabled in BIOS, the Realtek Ethernet adapter does not appear in Device Manager and Windows reports no Ethernet hardware. Checking the BIOS Network Boot or Integrated Ethernet setting and enabling it restores the Ethernet adapter in Windows without any driver action needed.

Physical Ethernet Cable or Port Issue Causing False Detection Failure

HP ProBook 450 G10 Ethernet not detected is sometimes reported when the actual issue is a defective Ethernet cable, a broken RJ45 latch on the cable connector, or a damaged Ethernet port on a dock or switch. The laptop Ethernet adapter is functioning correctly but reports no link because no physical signal is present. A different cable, a different port on the switch, or connecting directly to the router instead of through a patch panel eliminates physical layer issues as a cause before proceeding to driver troubleshooting.

How to Fix HP ProBook 450 G10 Ethernet Not Detected Windows 11

Step 1 — Verify Physical Connection and Check BIOS Ethernet Setting

Try a known-good Ethernet cable connecting directly from the HP ProBook 450 G10 RJ45 port to the router or switch. Verify the port LED illuminates when the cable is connected — the ProBook has a small amber or green LED next to the RJ45 port indicating link activity. If no LED lights with a confirmed-good cable, the Ethernet may be disabled in BIOS. Restart the ProBook and press F10 during boot to enter BIOS Setup. Navigate to Advanced or Network settings and find LAN or Ethernet. Ensure it is Enabled. Save and exit BIOS. The Ethernet adapter should now appear in Device Manager and Windows Network status.

Step 2 — Reinstall HP Realtek Ethernet Driver

Go to HP support page and search for ProBook 450 G10 with your model number. Under Software and Drivers, select Windows 11 and find the Realtek LAN Driver or Realtek Network Adapter Driver in the Network section. Download the HP-validated Realtek driver. In Device Manager, expand Network adapters. Find Realtek PCIe GbE Family Controller or similar Realtek entry. Right-click and select Uninstall device removing driver software. Also look under Other devices for Unknown device entries that may be the unrecognized Ethernet controller. Reboot. Run the downloaded HP Realtek Ethernet driver installer. Reboot again. Connect an Ethernet cable and verify the connection appears in the Network and Internet settings.

Step 3 — Reset Network Settings and Update Chipset Driver

Open Command Prompt as Administrator. Run: netsh winsock reset. Then run: netsh int ip reset. Then run: ipconfig /flushdns. Reboot after these commands. These commands reset the Windows network stack, clearing any corrupted TCP/IP or socket configuration that can cause the Ethernet to appear connected but not route traffic. Also download and install the Intel Chipset Device Software for the ProBook 450 G10 from the HP support page — the chipset driver ensures the PCIe lane that the Realtek controller uses is properly configured. After the chipset update, reinstall the Realtek Ethernet driver if the issue persists.

HP ProBook 450 G10 Ethernet disappeared completely after a Windows Update. Not even in Device Manager. Went to HP support, downloaded the Realtek LAN driver for the G10, installed it, and the Ethernet controller came back. The Windows Update had deleted the Realtek driver entirely. Always keep the HP driver package handy for this model. — David K., HP Business Community

Frequently Asked Questions

What Ethernet speed does HP ProBook 450 G10 support?

HP ProBook 450 G10 Realtek PCIe GbE controller supports Gigabit Ethernet at 10/100/1000 Mbps. When connected to a Gigabit switch or router port with a Cat5e or Cat6 cable, the connection negotiates at 1000 Mbps for maximum wired bandwidth. With older Cat5 cables or slower switches, the connection falls back to 100 Mbps. The Realtek adapter supports full-duplex operation at all speeds for simultaneous upload and download.

Does HP ProBook 450 G10 support Wake-on-LAN via Ethernet?

Yes. The Realtek PCIe GbE controller in the ProBook 450 G10 supports Wake-on-LAN (WoL) for remote power-on over the network. WoL must be enabled in both the BIOS and the Realtek driver properties. In Device Manager, open Realtek PCIe GbE Properties, Advanced tab, and enable Wake on Magic Packet. Also enable Wake on LAN in the ProBook BIOS under Power settings. Enterprise IT uses WoL for remote management and software deployment to powered-off ProBook units.

Can HP ProBook 450 G10 use Ethernet while docked via USB-C?

Yes. HP ProBook 450 G10 supports Ethernet through a USB-C dock or Thunderbolt dock with a built-in LAN port. The dock Ethernet appears as a separate network adapter in Device Manager, typically using an ASIX, Realtek, or Intel I225 chipset depending on the dock model. USB-C dock Ethernet requires the dock-specific driver if not recognized automatically. The built-in RJ45 port and dock Ethernet can be active simultaneously as separate interfaces.

Why does HP ProBook 450 G10 Ethernet show no internet after connecting?

Ethernet showing connected but no internet indicates the physical link is established but IP configuration has failed. Check if the DHCP server is reachable by right-clicking the Ethernet connection in Network settings and selecting Diagnose. If DHCP fails, try setting a manual IP address matching the router subnet. Also run the network reset commands in Step 3. Corporate networks may require 802.1X authentication — check with IT if connecting to a managed network that uses certificate-based access control.

Conclusion

HP ProBook 450 G10 Ethernet not detected on Windows 11 is caused by the Realtek PCIe Ethernet driver being removed or corrupted by Windows Update, the Ethernet LAN controller being disabled in BIOS, or a physical connection issue with the cable or port. Verify the physical connection with a known-good cable and check the LED indicator on the RJ45 port, enable the LAN controller in BIOS if it was disabled by enterprise configuration, and reinstall the HP-validated Realtek Ethernet driver from the HP support page. The Windows network stack reset commands in Command Prompt resolve cases where the Ethernet appears connected but cannot route internet traffic after the driver fix. The HP Realtek driver reinstallation resolves most Ethernet disappearance cases after Windows Update on the ProBook 450 G10.