Update: I did some more testing and it does appear that LoopBe30 is multi-client. I can run a standalone application (Liquid Notes) that uses a single port routed to a VSTi in my DAW, as well as using that same port to drive a standalone soft synth at the same time. I'm not sure that I need to do this, but it proves that I can.
Anyway, the point of whether the driver is actually active in Windows after a DAW crash is not clear to me at this point. The fact that this is a multi-client driver makes it hard to determine if it is really stuck. The driver is still available and works when called on by an application, even after it appears to have a "stuck" stream in Windows powerfcg.
Bottom line: So maybe this is just a Windows powercfg issue. Anyway, once powercfg shows LoopBe with an active stream, it can prevent Windows 10 from sleeping with an idle timer. The only solution I have found for that so far is to reboot.
Sonar rarely crashes for me, so this is not a huge issue. But wondering why my PC was not sleeping intermittently was driving me nuts! I will continue to use LoopBe and Sonar and enjoy both
Anyway, here is the free version:
http://www.nerds.de/en/loopbe1.htmland the 30 port version
http://www.nerds.de/en/loopbe30.html LoopBe1 is a native Windows™ WDM kernel mode driver, so expect the lowest possible latency. Programs do not need to link with special libraries, so LoopBe1 works with every MIDI or DirectMusic™-capable application.