>

Check network adapter status on Windows

List adapters with connection state and link speed using Get-NetAdapter.

WindowsnetworkadapterDiagnosticsLow risk
Run `Get-NetAdapter | Format-Table Name, Status, LinkSpeed, InterfaceDescription -AutoSize` to see every adapter and whether it is Up, Disconnected or Disabled.

01Command

Command
$ Get-NetAdapter | Format-Table Name, Status, LinkSpeed, InterfaceDescription -AutoSize

02What it does

Get-NetAdapter shows the physical and virtual adapters Windows sees, with the live connection state and negotiated link speed — a quick way to tell a Wi-Fi driver problem from a simple cable-out situation. Status "Up" means connected, "Disconnected" means the media is not plugged or associated, and "Disabled" means the adapter is switched off. Enable a disabled adapter with `Enable-NetAdapter -Name "以太网"`.

03Risk

RiskLow risk

04Undo

✓No undo needed — this command does not change persistent state.

05Sources

  • Get-NetAdapter
    Microsoft Learn · vendor-doc · 2026-09-17
    Evidence: Returns adapter objects with Status, LinkSpeed and MacAddress properties.
  • Get-NetIPInterface
    Microsoft Learn · vendor-doc · 2026-09-17
    Evidence: Returns IP interface properties such as ConnectionState and Dhcp per address family.

Last verified: 2026-09-18 · Category: Network

06Related solutions

Reset the Windows network stack with netsh
WindowsnetworksystemDiagnostics

The nuclear option for broken connectivity: rebuild Winsock and the TCP/IP stack to defaults when adapters show 'no internet' despite everything else working.

Medium risk ✓ 2026-09-17
Scan and repair Windows system files with SFC
WindowssystemTerminalDiagnostics

Use the System File Checker to verify every protected Windows system file against known-good copies and automatically replace the damaged ones.

Low risk ✓ 2026-09-17
Flush the DNS resolver cache on Windows
WindowsnetworkDNStroubleshooting

Purge cached DNS lookups so Windows re-resolves hostnames from scratch — the fix for 'the new server is live but my browser still hits the old one'.

Medium risk ✓ 2026-09-17