Article ID: 927015 - View products that this article applies to.
On a Microsoft Windows XP Service Pack 1 (SP1)-based computer that has certain wireless network devices installed, you may receive an error message that resembles the following:
Note The parameters that are represented by parameter1, parameter2, and parameter3 in this message may vary.
STOP 0x000000D1(parameter1, parameter2, parameter3, parameter4) DRIVER_IRQL_NOT_LESS_OR_EQUAL
This issue may occur if the ar5211.sys chipset driver from Atheros is installed on the computer. This chipset driver is used by many Atheros wireless network devices.
To resolve this issue, install the most recent drivers for the chipset. To do this, follow these steps:
MORE INFORMATIONAn update for the Atheros ar5211.sys chipset driver is now available. It is the shp5211.sys chipset driver.
In certain rare cases, if you still experience the issue after you update the drivers for the chipset, you may have to replace the wireless network device with a newer model.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
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