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Windows command reference

IPCONFIG /all

Display full TCP/IP configuration for all adapters, including addressing information useful for DHCP, gateway and DNS diagnosis.

Risk: LowReviewed: 2026-09-17
ipconfig /all

When to use it

Use before network resets when you need to identify the active adapter, assigned address, gateway and related TCP/IP configuration.

When not to use it

This is diagnostic output, not a repair. Do not post the full output publicly without reviewing potentially identifying network details.

Primary reference

Reviewed source

Related authority records

Continue with the same failing system

These links share the same component or repair context; they are not generic keyword suggestions.

GuideConnected but no Internet in Windows 11: identify IP, DNS or upstream failure

A connected Wi-Fi/Ethernet icon does not prove usable Internet; check addressing, gateway, DNS and another device before resetting Windows.

Guide169.254 IP address in Windows 11: diagnose DHCP before resetting the network

A 169.254.x.x IPv4 address is a strong clue that Windows did not receive a usable DHCP address from the router or DHCP server.

CommandNSLOOKUP

Query DNS name-resolution information so a hostname failure can be distinguished from general IP connectivity problems.

CommandPING

Test IP-level reachability and round-trip responses to a TCP/IP host; comparing a hostname with an IP can also provide name-resolution clues.

GuideDNS not resolving in Windows 11: prove name resolution before changing DNS settings

Use IP configuration, nslookup and a browser comparison to separate DNS failure from general connectivity or one-site failure.

CommandIPCONFIG FlushDNS

Clear the DNS client resolver cache on Windows.