For information about how to troubleshoot wireless connectivity on wireless networks that do not use 802.1X authentication, see Troubleshooting Microsoft Windows XP-based Wireless Networks in the Small Office or Home Office.
Troubleshooting Tools in Windows Wireless AP Troubleshooting Tools IAS Troubleshooting Tools Troubleshooting IAS Authentication and Authorization Summary Related Links The tools for troubleshooting wireless connections in Windows XP and Windows Server 2003 are the Network Connections folder and tracing.
For detailed information about the contents of the file, see A Support Guide for Wireless Diagnostics and Troubleshooting.
Abstract This article describes the tools used to troubleshoot a Microsoft Windows XP or Windows Server 2003-based wireless client, a wireless access point (AP), and the Internet Authentication Service (IAS) when using Institute of Electrical and Electronic Engineers (IEEE) 802.1X authentication for IEEE 802.11-based wireless connections.This article also describes the most common problems with IAS authentication and authorization, certificate properties, and the process of certificate validation for both wireless client and IAS server certificates.If the wireless adapter has an Automatic Private IP Addressing (APIPA) address (169.254.0.0/16) or the configured alternate IP address, then authentication has failed and the Windows-based wireless client is still associated with the wireless AP.If the authentication fails and the association is still in place, the wireless adapter is enabled and TCP/IP performs its normal configuration process.For detailed information about a Windows-based authentication infrastructure, see Wireless Deployment Technology and Component Overview.
For detailed information about how to deploy a wireless LAN using IEEE 802.1X authentication, see Deployment of Protected 802.11 Networks Using Microsoft Windows.
For detailed information about the contents of the and files, see A Support Guide for Wireless Diagnostics and Troubleshooting.
To obtain detailed information about the EAP authentication process, try the authentication process again and view the and files in the \Tracing folder.
Verify that this string is correct from the properties of the Smart Card and Other Certificate EAP type on the Authentication tab from the properties of the wireless connection that corresponds to the wireless LAN network adapter.
Figure 3 shows the default properties of the Smart Card and Other Certificate EAP type for Windows XP with no service packs installed and Windows 2000.
To obtain detailed information about the Wireless Zero Configuration service for Windows XP SP2 or Windows Server 2003 with Service Pack 1 and the EAP authentication process for all versions of Windows XP or Windows Server 2003, you must enable tracing by typing netsh ras set tracing * enabled at a command prompt.