Hp 440 G9 DMA Protection Error Update

[Blue-IT]

This is kind of an update to some previous posts about the HP DMA crash error

To provide some context, we had about 80 HP 440 G9 laptops that has this DMA crashing issue. We first started seeing this issue back in January 2025. We made sure to use that HP support assistant tool to keep all the drivers up to date but that did not change anything. I think we also tried doing a fresh install of Windows 10/11 but the issue kept happening.

Anyway, looks like the Driver Version 6001.15.155.0 of the Realtek RTL8852BE WiFi 6 802.11ax PCIe Adapter was causing this issue. Someone did mention in these forums to update to version 156. Here is the link to the update from the Microsoft Catalogue: https://catalog.update.microsoft.com/Search.aspx?q=rtl8852BE-vs

In my testing, after I installed driver version 156 of Realtek wifi adapter, I have not seen the DMA crash at all. Looks like the version 155 was causing the crash (rolling back to version 152 also fixed the issue but that is not a long term solution).

Something to note, looks like there was a even newer wifi driver update from the HP support assistant. That newer driver version is 158. (The full driver version is 6001.15.158.601) I tested it on one of the G9s last week. Still did not see it crash but I think I should test it more.

So, did that fix the issue? I think so? Just want to see if anyone found a similar or different solution. Not sure if HP ever gave an official answer to this DMA issue. Hopefully an HP Representative will see this to let us know if the issue was officially resolved because I do not want to send our G9's back into the device pool for them to crash again. We just replaced them 😞