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Symptom(s):
The following symptoms may be seen if a WiFi access point (AP) or broadband WiFi router does not properly support the Power Save Polling (PSP) feature:
- Intermittent loss of WiFi connection
- Inability to initiate a WiFi connection
- Poor WiFi connection data performance
These symptoms may be more pronounced when on battery power.
Cause:
Power-Save Polling mode is a feature that provides extended battery life for notebook computers. It requires coordination between the AP or router and the WiFi adapter. Intel has discovered that some APs or routers may not implement the feature correctly or completely.
Solution:
Contact the AP or router vendor for updated software or firmware that corrects the problem.
Alternate Solution
An optional workaround is to manually put the WiFi adapter into Continuously Aware Mode (CAM). This disables the PSP feature. The WiFi adapter can be put into CAM using the following methods:
Note: Implementing this workaround on certain systems with Bluetooth* co-existence may affect operability of the Bluetooth device. Contact your computer manufacturer for more information.
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.
Use Network Control Panel Applet (NCPA) to Set CAM
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.
This applies to:
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