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[Dinyar]

I have been using JRiver for about 5 years and have been very happy with various past versions.

Hence bought the JRiver 24 license before the program was actually released.

JRiver 23 has been working well on my Win-10 64 bit machine.

Installed JRiver 24 (for PC) a couple of days ago.
It seems to have a Severe Problem.
If My Chord QBD76 HDSD DAC is run via the WASAPI driver, (to play Red Book CD Rips) the music plays for about 2 seconds and the Entire PC Re Boots!

No such problem with JRiver 23, even now (ie after JR24 was loaded).

Incidentally, JR24 works OK with the Kernel Streaming Driver for the same DAC,

JR24 also works well with Direct Sound DAC Drivers.
Even Direct Sound Drivers for the sound card work well.

But JR24 and the Chord QBD76 HDSD WASAPI Drivers seem to have a major conflict.

The driver is here:
https://chordelectronics.co.uk/wp-content/uploads/2016/11/QBD-76-Windows-7.zip

Please Help !

[JimH]

There was another similar problem with a Chord device recently.  Please try a search.

It is probably the driver causing the reboot.  Did you contact Chord?

[RD James]

If Windows 10 is up-to-date, you may not need the Chord driver (which is for Windows 7) as it now support USB Audio Class 2 devices natively.
You could try uninstalling the Chord driver and see if that works better.

[michael123]

Weird that V23 still works.
I had this issue (WASAPI --> blue screen) with V23 with M2tech driver after last summer update of Windows 10

[Dinyar]

There was another similar problem with a Chord device recently.  Please try a search.

It is probably the driver causing the reboot.  Did you contact Chord?

Thanks Jim... I looked up the other problem... Its for the Mac platform, and does not seem relevant to my problem. (the owner wanted to migrate to Windows, to overcome the Mac issue, and I suspect that the Windows platform resolved his problem).

Since JR23 has no WASAPI issues with the same DAC and driver, it would seem to me that JR24 is doing something very different from the older version..... ?

[Dinyar]

If Windows 10 is up-to-date, you may not need the Chord driver (which is for Windows 7) as it now support USB Audio Class 2 devices natively.
You could try uninstalling the Chord driver and see if that works better.

Thanks, James, but I am reluctant to disturb my perfectly setup and working JR23+Win10+Chord DAC, just to explore problems that are exclusive to JR24.....

[Dinyar]

Just got this clarification from CHORD:

Hi Dinyar,
    I'm not sure this is anything to do with J River.
Recently Microsoft updated Windows 10 to include the USB Audio Class 2 driver as you have correctly identified.
However when they did this they also stopped the original WASAPI support for legacy products.
This means that unfortunately the QBD76 can only work with Kernel Streaming now.

Best regards,

[RD James]

I don't think that's accurate. Windows 10 still has support for older drivers, but it's possible that Chord's driver - which was for Windows 7 - has problems now, and they're passing the blame off on someone else.
I'm not sure why MC24 would be any different from MC23 in that regard, if you have both using the same settings.
 
But I'd try uninstalling the Chord driver and see if the built-in USB Audio Class 2 drivers work with it.