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Difficulty: MediumWindows Client Networking Configuration

A network technician needs to resolve an IP configuration conflict and clear cached name resolution issues on a Windows 11 client computer configured for dynamic addressing. Place the steps in the correct sequential order to release the existing DHCP lease, clear the DNS cache, request a new IP address configuration, and verify the updated network adapter settings using the Command Prompt.

  1. 1Execute `ipconfig /release` to terminate the active lease and unbind the current IPv4 address from the network interface.
  2. 2Execute `ipconfig /flushdns` to purge the local DNS resolver cache of stale or corrupted domain name mappings.
  3. 3Execute `ipconfig /renew` to send a request to the local DHCP server for a fresh IPv4 configuration lease.
  4. 4Execute `ipconfig /all` to display and inspect the complete active network adapter parameters and lease details.

Answer

The correct troubleshooting sequence is: first, execute `ipconfig /release` to drop the current dynamic IP lease; second, run `ipconfig /flushdns` to purge stale cached DNS resolution records; third, execute `ipconfig /renew` to request updated network parameters from the DHCP server; and finally, execute `ipconfig /all` to verify that all adapter configuration details have been successfully updated.
The proper network refresh procedure requires unbinding the current IP address first (`ipconfig /release`), clearing cached DNS lookups (`ipconfig /flushdns`), requesting a fresh set of IP settings from the DHCP server (`ipconfig /renew`), and validating the final active configuration (`ipconfig /all`).

Step-by-Step Solution

1
Release the active IPv4 lease using `ipconfig /release`.
The network interface card relinquishes its currently assigned IP address.
Releasing the existing configuration clears potential lease conflicts prior to requesting updated parameters.
2
Clear the local DNS resolver cache using `ipconfig /flushdns`.
All cached DNS host-to-IP lookup entries are deleted from memory.
Purging stale or incorrect DNS entries prevents ongoing name resolution errors.
3
Obtain a new DHCP lease using `ipconfig /renew`.
The network interface obtains a fresh IP address, subnet mask, gateway, and DNS server addresses from DHCP.
Renewing prompts the client to negotiate a new lease with the DHCP server.
4
Verify the resulting network configuration using `ipconfig /all`.
A full readout of all active adapter parameters, including DHCP server and lease times, is presented.
Inspecting the full configuration validates that all network parameters were correctly received and applied.

Key Concept

Windows Command-Line Network Configuration and DHCP/DNS Troubleshooting Sequence
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Topics

Windows Client Networking Configuration

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