Article ID: 950725 - View products that this article applies to.
After you install Windows XP Service Pack 3 (SP3), the Authentication tab is missing in the properties dialog box of the computer's wired network adapter. For example, when you open the Local Area Connection Properties dialog box of a wired network adapter, you see only the General tab.
Note The Local Area Connection placeholder represents the name of the connection.
In Windows XP Service Pack 2 (SP2), both the wired and wireless connections are handled by the Wireless Zero Configuration service (WZCSVC), and this service is always running. As part of Network Access Protection (NAP) integration in Windows XP SP3, this WZCSVC functionality is divided into two separate services:
To resolve this issue, manually start the Wired AutoConfig service (DOT3SVC). To do this, follow these steps: