Monday, 6 February 2012

Intel WiFi Connectivity Issues


Problem:
Intel® wireless network card Wi-Fi connection intermittent loss, inability to initiate a connection, and poor performance.

Description:
What are the problems that customer may encounter?
  • Intermittent loss of Wi-Fi connection
  • Inability to initiate a Wi-Fi connection
  • Poor Wi-Fi connection data performance
What is the root cause?
PSP mode is a feature that provides extended battery life for notebook computers. It requires coordination between the AP or router and the Wi-Fi adapter. Intel has discovered that some APs or routers may not implement the feature correctly or completely.
If a Wi-Fi access point (AP) or broadband Wi-Fi router does not properly support the Power Save Polling (PSP) feature, issues may occur. These symptoms may be more pronounced when on battery power.
Affected cards:
Workaround: (Do not dispatch hardware)
Workaround is to manually put the Wi-Fi adapter into Continuously Aware Mode (CAM). This disables the PSP feature. The Wi-Fi adapter can be put into CAM using the following two methods:

Workaround 1: Use Intel® PROSet/Wireless WiFi Connection Utility to Set CAM
1.       Click Advanced > Adapter Settings > Advanced tab.
2.       Select Power Management and uncheck Default / Auto and move the slider to Highest / Maximum Performance.
If the slider is already at Highest / Maximum Performance, move the slider to another setting and then back to Highest / Maximum Performance.


Workaround2:

Put the wireless adapter into Continuously Aware Mode using the following steps.
1.       Click Start > Settings > Control Panel.
2.       Double-click Network Connections.
3.       Right-click the wireless connection and click Properties.
4.       Click Configure.
5.       Click the Advanced tab.
6.       Select the Power Management setting, uncheck Default / Auto and move the slider to Highest / Maximum Performance. Note: If the slider is already at Highest / Maximum Performance, move the slider to another setting and then back to Highest / Maximum Performance.


Keywords:
Wi-Fi connection, wireless, data performance, intermittent loss

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