COMMON DEVICE ISSUE · NOT AN ERROR CODE

Windows Ethernet wired internet does not work

A cable, router port or network configuration may interrupt Ethernet.

✓ Manufacturer source✓ Safe checks✓ Verification and escalation
Microsoft · Computer11 November 2026 · official source reviewed

What might cause this?

Possible reasons depend on the exact model. These are checks, not a confirmed diagnosis.

Possible causes

  • The Ethernet cable or router connection may be loose.
  • The network adapter or IP configuration may be faulty.
Open official manufacturer document ↗

What can you try?

Try these safe, user-level checks in order; do not open the device. Menu labels may differ by version.

  1. 01

    Step 1

    Check both cable ends and try another router port.

  2. 02

    Step 2

    Review Ethernet status under Settings > Network & Internet.

  3. 03

    Step 3

    Restart router and PC, then try the Windows network troubleshooter.

How can you confirm the fix?

Ethernet shows Connected and websites load.

When should you contact service?

If the issue persists after these safe checks, contact Microsoft official support with your exact model and what you tested.

⚠ Stop using a device if it overheats, shows liquid damage, smells burnt or has a swollen battery.

Will a repair cost money?

Settings, cables and user checks may require no repair. Hardware costs depend on the exact model, warranty and service diagnosis; no fixed price is promised.

Quick answers

Could these checks affect warranty?

Use only external checks recommended for end users by the manufacturer. Opening batteries, electronics or sealed parts can create safety and warranty risks.

What if the steps do not help?

Write down your model, software version and test results. Share those details with official support rather than repeating potentially unsafe actions.

How was this sourced?

Model scope: Network reset may remove VPN and saved network settings; use as a last resort.

This is an original summary of the manufacturer support document; use the official page for current, model-specific instructions.

Open official manufacturer document ↗

Source reviewed: official manufacturer guidance; a second official document is linked where available.