A significant issue has emerged in the latest Windows 11 builds, specifically the 24H2 and 25H2 versions, where a critical bug is leading to the loss of essential network files. Users relying on Ethernet connections have reported complete internet access failures following the installation of recent updates (KB5066835 for Windows 11 25H2 and KB5065789 for Windows 11 24H2). Many have taken to Microsoft’s Q&A forums to express their frustration, noting that the problem arose immediately after these updates. While rolling back the operating system is the recommended course of action, several community-sourced solutions may provide relief before resorting to such drastic measures.
Possible fixes for Internet via Ethernet not working on Windows 11 24H2 or 25H2
1) Perform a full network reset
Resetting the network can often resolve various network and driver-related issues. Given that the bug corrupts network configurations, a fresh setup of these settings can be an effective remedy. This process is akin to a complete reinstallation of Windows.
To initiate a network reset, follow these steps:
- Open the Settings app.
- Navigate to Network & Internet.
- Click on Advanced network settings.
- Scroll down and select Network reset.
- Click Reset now and allow your PC to restart.
If the drivers are indeed corrupted, Windows will automatically reinstall them from its local driver pool, restoring your internet connectivity.
2) Flush DNS and reset TCP/IP via command prompt
If a basic network reset does not rectify the Ethernet issue, a more thorough reset of your networking stack can be executed through the Command Prompt. Here’s how to proceed:
- Open the Command Prompt by typing cmd in the Start menu, right-clicking it, and selecting Run as administrator.
- Input the following commands in the specified order, pressing Enter after each:
- netsh int ip reset
- netsh winsock reset
- ipconfig /flushdns
- ipconfig /release
- ipconfig /renew
After executing all commands, restart your computer to see if the issue is resolved.
3) The registry edit workaround
For those still experiencing connection errors, an advanced approach may be necessary:
- Press Win + R, type regedit, and press Enter.
- Navigate to: HKEYLOCALMACHINESYSTEMCurrentControlSetServicesWcmSvc.
- On the right side, double-click on the DependOnService entry.
- In the text box, remove WinHttpAutoProxySvc from the list, ensuring RpcSs and NSI remain intact.
- Click OK and restart your PC.
4) Hardware bypass
If software updates are inaccessible and a wired connection is urgently needed, consider utilizing an external USB-to-Ethernet adapter. This device circumvents the bug due to its distinct drivers compared to the built-in Ethernet port. Alternatively, a USB-to-WiFi adapter can be employed if your device lacks one, providing a temporary solution to the Ethernet dilemma.
