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SOURCE VERIFIEDSource review Sep 8, 2026No hands-on test claimed2 sources

Ethernet not working in Windows 11

A wired connection can fail because of the cable, router port, ISP path, disabled or unhealthy Ethernet adapter, bad IP configuration, VPN/proxy software, or a driver problem. The useful first split is whether another device can use the same router and whether Windows sees the Ethernet link at all.

AuthorshipWritten and source-reviewed by Mihailo Ivanjac
Record created Sep 8, 2026Last source review Sep 8, 2026Source review only
SymptomWindows 11 shows no Ethernet connection, Action needed, an unidentified network, or a wired link that cannot reach the internet.
Problem familyWindows · Windows
Highest step riskCaution
Editorial statePublic launch · indexed
Affected scope
Windows 11Ethernet adaptersHome routersUSB Ethernet adapters
Start here

Prove the physical and network scope

Check the cable and router port, then compare another device on the same network. If Windows sees the Ethernet adapter but has no internet, inspect IP/DNS state before reinstalling drivers or using Network reset.

  1. Reseat both ends of the Ethernet cable and try another known-good cable or router LAN port.
  2. Check Settings > Network & internet > Ethernet for link/status information.
  3. Test another device on the same network to separate router/ISP trouble from this Windows PC.
  4. Restart the modem/router only if the issue appears network-wide.

Why this branch first: Microsoft places cable, router and scope checks before deep Windows changes because they quickly identify whether the PC is actually the fault domain.

TroubleByte diagnostic diagram for Ethernet not working in Windows 11.
Ethernet not working in Windows 11 diagnostic pathTroubleByte · Original TroubleByte editorial diagram
Visual diagnosis

TroubleByte diagnostic path

01
Scope

Test cable, router port and another device.

02
Link

Check Ethernet status and adapter detection.

03
Windows path

Inspect IP, DNS, VPN/proxy and driver state.

04
Reset last

Use Network reset only after preserving configuration.

Original TroubleByte diagnostic map. It summarizes the cited troubleshooting order; it is not a vendor screenshot.

Decision checks

Use the symptom to choose the next branch

Does another device work on the same router/network?

YES

Keep the fault domain on this Windows PC, cable or adapter.

NO

Treat the router/ISP path as suspect before reinstalling the PC driver.

Does Device Manager show the Ethernet adapter normally?

YES

Inspect IP/DNS and software configuration before hardware conclusions.

NO

Restore the correct driver/firmware or test another adapter before network reset.

Original TroubleByte decision aid derived from the cited troubleshooting scope. It does not replace vendor documentation.

Diagnosis

What this usually means

The fastest diagnosis separates physical/link failure from a Windows-only network configuration problem. If another device also fails on the same router path, changing the Windows driver is unlikely to help. If the Ethernet adapter is detected and link is present only on this PC, inspect address, gateway, VPN/proxy and driver state before a destructive reset.

What the evidence establishes

What we verified from the source material

Microsoft starts Ethernet troubleshooting with cable, router and scope checks, then moves to Windows network diagnostics, IP/DNS commands, adapter drivers and finally Network reset. Its driver guidance also recommends Windows Update or the hardware manufacturer before manual reinstall work.

Before you change anything

Prerequisites and checks

Prepare first

  • Know whether the Ethernet cable plugs directly into the router or through a dock/USB adapter.
  • Have another cable or LAN port available if possible.
  • Save VPN/static-IP settings before any full network reset.

Checks that prevent the wrong fix

  • Try a known-good Ethernet cable or router port.
  • Check Ethernet status in Settings and whether Device Manager shows the adapter.
  • Compare connectivity on another device using the same router or network.
Scope

Applies to

✓ Windows 11✓ Ethernet adapters✓ Home routers✓ USB Ethernet adapters
Troubleshooting path

Solutions, in order

01
SAFE · START HERE

Prove the physical and network scope

  1. Reseat both ends of the Ethernet cable and try another known-good cable or router LAN port.
  2. Check Settings > Network & internet > Ethernet for link/status information.
  3. Test another device on the same network to separate router/ISP trouble from this Windows PC.
  4. Restart the modem/router only if the issue appears network-wide.

Why this can work: Microsoft places cable, router and scope checks before deep Windows changes because they quickly identify whether the PC is actually the fault domain.

02
CAUTION

Repair the Windows network path

  1. Run the Windows Network troubleshooter or Get Help networking diagnostics.
  2. Inspect the Ethernet adapter in Device Manager and update/reinstall the correct OEM driver if needed.
  3. Use IP/DNS reset commands only after confirming the problem is local to this PC.
  4. Use Network reset last because it removes and reinstalls network adapters and resets their settings.

Why this can work: Microsoft documents network reset as a last step after adapter, address and connectivity checks.

Verification

How to know the fix actually worked

  1. Settings reports the Ethernet connection as connected and internet access works.
  2. The connection still works after restart without repeatedly disabling/enabling the adapter.

Do not count a temporary disappearance of the symptom as a confirmed fix if the problem normally returns after a restart, reconnect or several minutes of use.

Stop conditions

When not to keep changing things

  • If every device on the same router/ISP path is offline, stop changing Windows and troubleshoot the network upstream.

Escalation: If the adapter remains absent after restart and OEM driver checks, or a known-good USB Ethernet adapter also fails across ports, escalate to the PC or adapter manufacturer rather than repeatedly resetting Windows.

Evidence

Sources used for this record

Primary · checked Sep 8, 2026Microsoft — Fix Ethernet connection problems in WindowsFirst-party documentation used as the primary evidence source for this troubleshooting record.Corroborating · checked Sep 8, 2026Microsoft — Update drivers through Device Manager in WindowsFirst-party documentation used as corroborating evidence for this troubleshooting record.
Who reviewed this

Mihailo Ivanjac

This record was written and source-reviewed by Mihailo Ivanjac. Source review means the cited documentation was checked against the troubleshooting order on this page; it does not imply a hands-on reproduction unless the page explicitly says so.

Author profile and editorial scope →
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Change log

Revision history

Show 1 recorded revision

2026-09-08 — Created for the v1.1 content-scale pass from current first-party documentation; public indexing is controlled by the launch allowlist.