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TechNote: Sporadic wireless disconnects caused by data reordering issue

What is the data reordering issue?
The data reordering issue causes intermittent WiFi connection loss and application hangs on Windows 8* platforms.

Resolving the issue
Check the current version available for your adapter and Operating System.
Find the link to the current Intel® PROSet/Wireless Software version.

Scope: Under each operating system there is a list of adapters supported by this software fix.

    Windows 8:
  • The following Intel wireless adapters with version 16.0.x software:
    • Intel® Dual Band Wireless-AC 7260.
    • Intel® Dual Band Wireless-N 7260.
    • Intel® Wireless-N 7260.
    • Intel® Dual Band Wireless-AC 3160.
  • The following wireless adapters with 15.x software:
    • Intel® Centrino® Wireless-N 2230.
    • Intel® Centrino® Advanced-N 6235.
    • Intel® Centrino® Advanced-N 6205.
    • Intel® Centrino® Advanced-N 6205 for Desktop.
    • Intel® Centrino® Ultimate-N 6300.
    • Intel® Centrino® Advanced-N + WiMAX 6250.
    • Intel® Centrino® Wireless-N 2200.
    • Intel® Centrino® Wireless-N 2200 For Desktop.
    • Intel® Centrino® Wireless-N + WiMAX 6150.
  • The following wireless adapters may be affected by this issue. These are not supported by the current software update. A future update will include the data reordering fix for these adapters.
    • Intel® Centrino® Wireless-N 105.
    • Intel® Centrino® Wireless-N 135.
    Windows 7*:
  • The Windows 7 software is only applicable to the wireless adapters listed below.
  • The following Intel wireless adapters with version 16.1.0 software:
    • Intel® Dual Band Wireless-AC 7260.
    • Intel® Dual Band Wireless-N 7260.
    • Intel® Wireless-N 7260.
    • Intel® Dual Band Wireless-AC 3160.
Note A future Windows 8 fix will address this issue for other Intel wireless adapters.

Impact

  • Disruption of application layer data transfer resulting in application hangs or loss of connection.
  • Issue is more evident in scenarios of connect/reconnect, resume from suspend, and roaming.
  • Failure to obtain IP address via DHCP.

Root cause
Firmware change corrects a packet reordering problem that occurs primarily when there are other connected devices to the same BSS.

Related topics
Intel® PROSet/Wireless Software driver versions by Operating System
Intel® PROSet/Wireless Software Downloads
Resolving Wi-Fi network connection issues
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Operating System:

Windows 8*

This applies to:

Intel® Centrino® Advanced-N + WiMAX 6250
Intel® Centrino® Advanced-N 6205
Intel® Centrino® Advanced-N 6205 For Desktop
Intel® Centrino® Advanced-N 6235
Intel® Centrino® Ultimate-N 6300
Intel® Centrino® Wireless-N + WiMAX 6150
Intel® Centrino® Wireless-N 105
Intel® Centrino® Wireless-N 135
Intel® Centrino® Wireless-N 2200
Intel® Centrino® Wireless-N 2200 For Desktop
Intel® Centrino® Wireless-N 2230
Intel® Dual Band Wireless-AC 3160
Intel® Dual Band Wireless-AC 7260
Intel® Dual Band Wireless-AC 7260 for Desktop
Intel® Dual Band Wireless-N 7260
Intel® Wireless-N 7260

Solution ID: CS-034535
Last Modified: 17-Jul-2014
Date Created: 03-Sep-2013
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