Question

When I connect a Quantum 2626 to my Lenovo Thinkpad P1 Gen3 (i9) running Windows 10 (21H1 OS Build 19043.1237) I get a bluescreen instantly after login. Before login the blue TB led flashes blue. The bluescreen mentions ks.sys being the culprit. I updated all firmwares/drivers on the Lenovo that are provided by the manufacturer (including TB3 specific updates). Tested the TB cable (50cm) with a external TB 3 SSD drive and that works.

This is my first experience with this device, all other interfaces I own work fine with this laptop (same windows install), hope the near future show some perspective...

Coming from RME, *********, MOTU, interfaces I'm quite surprised stuff like this still can happen nowadays...

Answer 1

your best bet to get it fixed is to submit a ticket on this.

yeah, a bad driver can crash the system, it's been like this forever.

Answer 2

I get the same KS.sys conflict BSOD every time I switch the Q2626 on. It was working earlier but I had to unplug the cable from the computer and after reconnecting the cable it started to crash.

Any ideas, anyone ?

Answer 3

I had same issue with Quantum 2. Disabling "PreSonus Hardware Access Service" helped me.

Answer 4

Same issue here.
Funny enough, the problem occurs when I register my computer on our corporate network.

Windows is default protected by Windows Defender, but when enrolled into a corporate network, Intune is a wide used protection.
Thunderbolt devices and Direct Memory Access have been flagged as a security threat and can be used to access data on a protected computer.
More info can be found here: https://docs.microsoft.com/en-us/windows/security/information-protection/kernel-dma-protection-for-thunderbolt
How Microsoft protects this in Windows can be found here: https://docs.microsoft.com/en-us/windows/client-management/mdm/policy-csp-dmaguard#dmaguard-policies

The solution is that PreSonus has to come with a DMA remapping compatible driver for the Quantum 2626.

At the moment I cannot connect to my companies network when I have the Quantum 2626 installed.
As soon as I connect to my companies network, the protection gets enabled and I cannot use the Quantum 2626 anymore.

So I am back to working on my laptop and making music on my desktop. Not ideal, but for now I can work...