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
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E N G L I S H
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