When you run the ipconfig /flushdns command on Windows XP, you receive an error similar to:

Could not flush the DNS Resolver Cache: Function failed during execution.

When you attempt to Repair the Network Connections, you receive an error like:

Windows could not finish repairing the problem because the following action could not be completed:
Clearing the DNS Cache

For assistance, contact the person who manages your network.

This behavior will occur if the DNS Client service is not running.

To fix this problem:

1. Open a CMD.EXE window.

2. Type the following command and press Enter:

REG ADD HKLM\SYSTEM\CurrentControlSet\Services\Dnscache /V Start /T REG_DWORD /F /D 2

3. Shutdown and restart Windows XP.

NOTE: See tip 0324 ยป Registry entries for services.