I have a Dell Inspiron 5748, 2GHz Intel Core i7-451U running Win 10 Home (x64) Ver 1607 (build 14393.693). I wish to obtain audio from an external source via USB to USB cable. I can go to Device Manager and see the USB Mic and un-mute it and increase slider and all is well with the world, it works. But, within 20-25 seconds, that mic input changes to "mute" and everything goes away. I can un-mute as many times as I want but it always (on it's own) goes back to the "mute" condition.
Any suggestions? Dan