@Sidroe
 
Do you lose the QC drivers after a SONAR crash (for any reason)?
 
Or do the drivers just bail on you in the middle of a project? (I.e. "There are no audio devices for the current driver model on your system.")
 
fwiw, I tend lose mine on a Sonar crash (mainly issues with speed comping / take lanes) but a PC restart has always got me back up and running in the past. The installer routine works well enough if you're connected but does nothing to improve robustness. And yes, been looking into replacing it for some time, giving USB 3.0 a little more time to see what turns up. 
 
 
 
 

Octa-Capture here, and although it is rare, I do get the random freeze/fail that requires a full restart.  Sonar will not let go without a restart.  It is very annoying, and I have not discovered a shared set of circumstances that make the freeze happen.  I'll be watching this thread carefully.

I'm using the Roland Quad Capture.  In general, it works great.   I have had a few issues which could have possibly been blamed on the Quad Capture, but they just as easily could have been blamed on other things like Windows, errant plugins, or other installed software.   I find that when an issue arrives that may be related to the Quad Capture, I can just uninstall the driver, and re-install.  That seems to clear up most issues.  Also, it's been years, but make sure that you have the latest drivers and firmware from Roland.  Eventually, I'd like to move to the UAD Twin USB, but I do see posts about that card, on occasion as well.

Yes with a pair of studio captures. Happens every now and again

Hey, Jackson! Been mixing today! To answer your question, YES!!!!! A crash so hard it would make your teeth rattle BUT it only kills the ASIO part of the driver. The rest of the drivers and other apps using anything but ASIO still work. Once Splat crashes, the ASIO driver is gone and restarting will not bring it back. I have to totally uninstall the drivers, clean the registry, go online and let Windows Update reinstall the drivers!!!
The problem is the ASIO driver is the only driver that allows the 2 Studio-Captures to be synced together and use all 32 ins and 20 outs. Needless to say, the latency is too high with the other drivers and you can only use 1 Studio-Capture.
I wouldn't mind it so bad if I had the driver installation package for Windows 10 on my hard drive but Roland no longer has that driver available for download. You have to use Windows Update to reinstall!!!  AAAARRRGGGGHHHH!!!
I even tried the hack for the older Windows 8.1 driver but it will not work either!!!

It could very well be that the syncing of the 2 Studio-Captures is very finicky. I could probably use 1 Studio-Capture on ASIO and never have a minutes problem. That defeats having the 32 ins and 20 outs that I need. Rock and a hard place!! Have tried some of the settings mentioned above and I am trying to keep a record of how long it has been to the next crash. Hopefully, some of these tips work for me!
Don't get me wrong, I am happy with the Studio-Captures overall. It is just when it does crash, it seems to be at the most inopportune time.

I have a QuadCapture here and everything is rock solid until I open projects with the following plugins:
 
CA-2A
BT-Analog Trackbox
Rapture Pro

I checked in Windows Log gonna post here my findings if there's some useful info for the devs.

CA-2A:
Faulting application name: SONAR.exe, version: 22.11.0.111, time stamp: 0x583dc663
Faulting module name: CA-2ALevelingAmplifier_64.dll, version: 2.0.1.97, time stamp: 0x5802558a
Exception code: 0xc0000409
Fault offset: 0x0000000000085e88
Faulting process id: 0x2178
Faulting application start time: 0x01d250caa3ad2212
Faulting application path: C:\Program Files (x86)\Steam\steamapps\common\Cakewalk\x64\SONAR\SONAR.exe
Faulting module path: e:\vsts x64\CA2ALevelingAmplifier\CA-2ALevelingAmplifier_64.dll
Report Id: 0d9a99e9-2e89-47eb-9b89-6250c845f637
Faulting package full name:
Faulting package-relative application ID:

BT-Analog Trackbox:
Faulting application name: SONAR.exe, version: 22.8.0.31, time stamp: 0x57c83875
Faulting module name: BT Analog TrackBox.dll, version: 0.0.0.0, time stamp: 0x5227a642
Exception code: 0xc0000005
Fault offset: 0x000000000000329e
Faulting process id: 0x2450
Faulting application start time: 0x01d219f78a2ea74c
Faulting application path: C:\Program Files (x86)\Steam\steamapps\common\Cakewalk\x64\SONAR\SONAR.exe
Faulting module path: c:\program files (x86)\steam\steamapps\common\cakewalk\x64\vstplugins\Nomad Factory\BT Analog TrackBox.dll
Report Id: 3a49c21b-008f-4b93-b1d8-4322afb6f167
Faulting package full name:
Faulting package-relative application ID:

Rapture Pro:
Faulting application name: SONAR.exe, version: 22.11.0.111, time stamp: 0x583dc663
Faulting module name: RapturePro_64.vst3, version: 2.0.4.25, time stamp: 0x569d3a4b
Exception code: 0xc0000409
Fault offset: 0x00000000001d52e4
Faulting process id: 0x28e8
Faulting application start time: 0x01d24e127e114410
Faulting application path: C:\Program Files (x86)\Steam\steamapps\common\Cakewalk\x64\SONAR\SONAR.exe
Faulting module path: c:\program files\common files\vst3\Rapture Pro\RapturePro_64.vst3
Report Id: 7ffb6000-5922-4c9d-8796-00c0dc024345
Faulting package full name:
Faulting package-relative application ID:

By the way in my case i lose the ASIO drivers too so, i can't open SONAR without a warning saying me there's no device connected so, i unplug my QuadCapture, plug it again, open the same project and then everything is ok.

My system is up to date, no insider program just public stable builds, motherboard audio chipset disabled from BIOS, lastest driver s.

Intel  Core i5 4440
16GB Ram Corsair Vengeance DDR3
SSD Samsung Evo 850
nVidia eVGA GTX960 SSC

S.O. and SONAR with all the plugins installed on the same SSD.

I have odd crashes/dropouts/etc and own an Octa-capture....but I've never been sure if it was the OS, the interface or a combination of software....(Had the same stuff happen with both win7 and win10) or some mix of all of them....
 
But sometimes task manager will save me, other times I will have to reboot.  It'd be a shame if it was the fault of the Octa....I like using that interface....previously I used an m-audio delta 1010 for over a decade....and thought it was a decent interface, but I like the Octa a lot more.

Rapture Pro crash on me few minutes ago, trying to put it into a project with only MIDI data.

And if i don't disconnect and reconnect the Roland audio interface SONAR doesn't open.