- In your computer's Local Area Network (LAN) settings, the Automatically detect settings check box is selected.
- You cannot ping the Web Proxy Auto-Discovery (WPAD) server by its Domain Name System (DNS) name. This behavior may occur if your computer's connection-specific DNS suffix does not match the DNS domain where the WPAD server's DNS entry is registered.
To configure your DHCP server to set the connection-specific DNS suffix for its client computers, follow these steps:
- If you use a Windows 2000 Server-based computer as your DHCP server, click Start, point to Programs, point to Administrative Tools, and then click DHCP.
If you use a Windows XP-based computer as your DHCP server, click Start, click Control Panel, click Performance and Maintenance, click Administrative Tools, and then double-click DHCP.
If you use a Windows Server 2003-based computer as your DHCP server, click Start, point to Administrative Tools, and then click DHCP.
- Double-click the name of your server, right-click Server Options, and then click Configure Options.
- In the Available Options list, click 015 DNS Domain Name.
- Under Data entry, in the String value box, type the connection-specific domain name that you want the client computers to use as their connection-specific DNS suffix.
Note The connection-specific domain name must match the domain where the WPAD server's DNS entry is registered--for example, mydomain.com.
- Click OK.
- From the command prompt, type ipconfig /release, and then press ENTER.
- Type ipconfig /renew, and then press ENTER.
- Type ping WPAD.mydomain.com, where mydomain.com is the connection-specific DNS domain, and then press ENTER.
Note If the computer successfully resolves the name of the WPAD server, you see a series of messages that include the words "Reply from."