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Configure and Troubleshoot Wireless Networking (part 3) - Troubleshooting Wireless Connections

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3/18/2011 5:46:58 PM

Troubleshooting Wireless Connections

To ensure smooth wireless operation within your network environment, you can follow some basic steps when wireless communication is not functioning:

  • Ensure that proper credentials were used for authentication and check that the proper encryption was configured on the client and the wireless AP.

  • Check out all wireless adapters used on computers installed with Windows Vista. Make sure they are listed on the Windows HCL to ensure the adapter is Windows Vista capable.

  • Check to see whether a laptop has an integrated wireless adapter. Turn this off using the BIOS of the laptop if this adapter is not desirable for any reason.

  • Check the signal strength of all wireless access points and ensure little to no interference from problematic appliances. Appliances such as microwaves, electronic devices, cordless phones, or Bluetooth mobile devices may hinder the reception of some of the radio frequency bands in use by Wi-Fi certified network devices.

  • If wireless devices are not able to acquire an IP address from the DHCP server, check whether you should be using the DHCP service provided by the AP. If not, see if a DHCP server in use on the LAN is supposed to be accessible through the wireless AP by the wireless clients.

  • When possible, use Windows Vista network diagnostics by clicking Diagnose in the Wireless Network Connection Status dialog box. Figure 10 displays the dialog box after the diagnosis has been run and the suggestions that this process has rendered.

    Figure 10. Running diagnostics on a wireless connection.

Windows Vista collects all the errors and informational messages that wireless connections generate into logs. You can view these event messages in the logs by using Windows Vista Event Viewer. To open Event Viewer, click Start and type Eventvwr in the Search bar. After entering this command, you are prompted for administrative credentials to open the Event Viewer due to UAC.

Inside the MMC console of Event Viewer, use the Explorer-like interface to open and review the logs found at each of these places within Event Viewer:

  • EventViewer\Applications and Services Logs\Microsoft\Windows\Diagnostics-Networking

  • EventViewer\Applications and Services Logs\Microsoft\Windows\WLAN-Autoconfig\Operational

The Diagnostics-Networking log is logged to whenever the Network Diagnostic Framework service is initiated. The Operational log of WLAN-Autoconfig is automatically written to whenever an event occurs for WLAN connectivity. The events described next are written to the event log.

Informational Event

An informational event occurs one time per diagnostic operation. It is written to the log with Event ID 6100. This event collects all the details of the connection, as shown in Figure 11.

Figure 11. The Event Viewer display of EventID 6100, an informational event.

Helper Event

A helper event occurs several times as the diagnostic procedure is run. Its Event ID is also 6100. When the diagnostic procedure completes, it offers a description of what appears to be an issue in the EventDescription of the EventData on the Details page of an event. Figure 12 displays one of the three helper events generated by the use of the Diagnose option on a wireless connection.

Figure 12. The Event viewer display of Event ID 6100, a helper event.

Repair Option

Not really a type of event, per se, but Repair Option is a specialized informational event. This event lists the same repair option information that is displayed to the local user after completion of the diagnosis of a connection. Figure 13 displays the General page of the event that shows a suggested repair option to reset the adapter.

Figure 13. The Event Viewer display of Event ID 4000 with suggested repairs.
Other -----------------
- Troubleshoot Resource Access and Connectivity Issues (part 2)
- Troubleshoot Resource Access and Connectivity Issues (part 1) - Troubleshooting TCP/IP Configuration
- Configure and Troubleshoot Network Services at the Client Level
- Configure and Troubleshoot Network Protocols (part 3) - Configuring TCP/IP Version 6
- Configure and Troubleshoot Network Protocols (part 2) - WINS & NAT
- Configure and Troubleshoot Network Protocols (part 1) - Configuring Internet Protocol Version 4
- Reliability and Performance Monitor
- Event Viewer and Event Forwarding
- Scheduling Tasks
- Troubleshooting Policy Settings
 
 
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