Help! All I/O has been reset, no audio from Sonar

I cannot track down this problem... I have lost all audio output from Sonar to my Audiobox USB, which is acting as my soundcard... I get audio from other sources, when I play mp3s or stream videos online, or even playing my keyboard... but no output from Sonar. Even on old saved projects where no settings have changed it looks like all the I/O has been reset, my inputs are set to -none- and outputs to Master... any thoughts?

On further thought, it sounds like a preferences issue. Check and see if your audiobox is listed under "devices". Then see if it's checked.

I usually just have to reset the output at the bottom of the master buss in the console view.

It seems to be set correctly... also if I create a new track the Audiobox shows up as an option, but no options to choose left channel, right channel or stereo.

In MS win control panel under audio/speaker...what is the default sound device selected?

In Sonar preferences under devices, try disabling everything except for the audiobox (if there is anything).

There is nothing else.

Unfortunately, I'm at work, so I'm not able to get into sonar to stir up any more ideas right now.

I'm considering uninstalling and reinstalling the software, if anyone thinks that will help.

also usb ports, in devices in "device manager"..open each one, and select always on in their preferences.

With the X3 and now 2015, opening a web browser nukes the audio in sonar.
 
So I am still using 8.5.3 to record from the web, and dubbing tapes.
 
And it is very inconvenient when opening the web-help file.
 

Do you have onboard audio chip on the motherboard?..is it enabled in device manager?...try making that your windows default....then try again to play back in Sonar with the usb audiiobox....trouble shot the ghosts is hard, but you gain so much experience on the ons and offs...to get things into bliss...if this does not work for you, try with it as set, and reselect  main outs again in sonar console, and check preferences, try unselecting asio, and reselecting...just to clear any locks windows may have had or other app...then...driver update, still with it not as MS default...if that does not work...then consider reinstall?...or someone else might find something to help...so be patient...baby steps!

I do have onboard audio but I no longer have that speaker system hooked up... this system has been working for me for a long time and I haven't changed anything so something must have happened within the software... it is clearly something catastrophic, I'm out of ideas.

I know you had it working, but as I said MS updates might be behind this...so letting your audio solution be free...might help solve any locking to odd sample rates, or just hogging the device exclusively for MS or other third party player or user installed that does not let go of the driver.....thus your audio goes grey...locked out..or not available to Sonar...but...I think, if you fiddle that out of the varrible, it leads to a reinstall of either latest drivers, then Sonar lastly...because if one does not root it out as hardware, and you just reinstall...it may be it does not solve the problem....Just saying.

I seem to be back. I uninstalled and reinstalled Sonar, then had to unselect the Audiobox drivers, apply that, and then reselect them... then I got sound again. I hope it holds... thanks guys.