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KNOWN ISSUE:
Wireless LAN Connection Disconnects
Symptom(s):
Some wireless LAN client connections are intermittently dropped from some networks followed
by a new client association to either the same Access Point or another Access Point. Some
applications may lose their connections.
Wireless LAN protocol analyzer traces will reflect a high number of retransmissions to the client.
Access Point logs may reflect affected clients not authenticated because of too many retries.
This topic applies only to the following adapters:
• Intel® PRO/Wireless 2915ABG Network Connection
• Intel® PRO/Wireless 2200BG Network Connection
This topic applies only to adapters using driver version 9.0.4.8 or earlier.
This issue does not occur on all computers or on all networks.
Cause:
A timing issue in the driver causes clients to sometimes drop frames for a long enough period to
cause disconnects in some environments.
Solution:
This issue is resolved by upgrading the driver software to version 9.0.4.13.
The new driver is included with Intel® PROSet/Wireless software version 10.1.1. For information
on software availability and downloads see Download Windows* Software for Intel® PRO
Wireless Network Connection.
Work Around:
One of the following work arounds can be implemented as a temporary solution.
1. Configure the access points to use long preamble.
2. If the 1 Mbps data rate is disabled, then enable 1 Mbps data rate on the access points.
This applies to: Intel® PRO/Wireless 2200BG Network Connection
Intel® PRO/Wireless 2915ABG Network Connection
Solution ID: CS-022509
Date Created: 03-Apr-2006
Last Modified: 20-Jul-2006
http://www.intel.com/support/wireless/wlan/sb/cs-022509.htm