Why Am I Unable To Detect My NI PXIe Chassis When I connect My Win11 Laptop To The NI PXIe-8301 Remote Control Module

Updated Aug 24, 2023

Reported In

Hardware

  • PXIe-8301

Operating System

  • Windows

Issue Details

I am using my laptop, with Windows 11 version 22H2. When I tried to connect my laptop with the NI PXIe-8301, I can see my NIMAX stops responding and is unable to detect the chassis and instruments after plugging the Thunderbolt cable.

When I try on another laptop with Windows 10, along with the latest version, the same thing happens.

How could I solve this?

Solution

To solve this,  disable the Kernel DMA protection in the laptop through the Windows BIOS. After the Kernel DMA protection is disabled, restart the laptop and keeping the chassis powered ON and is connected to the laptop.
Also, make sure do no hot-plug. Make sure the cable is connected before powering on the laptop and MXI expansion chassis. Power on the MXI expansion chassis followed by the laptop. This may help to mitigate device enumeration issue. If the link LED turns green only when OS is loading, then it might bump into hot-plug condition and drivers might encounter rat-race condition.