After struggling with iSpy for several months I found Blue Iris and couldn't have been more pleased, 10 months of perfection, but in the middle of July the audio stopped being recorded. I made no changes to BI, I did install Windows 10 Creator in mid July, that's the only change that I recall. Have checked Camera Properties/Audio and IP camera stream is still selected. Using the software which came with the camera reveals that audio is still being streamed. Have sent a support request 5 days ago and fulfilled all the conditions for support but no reply. Does anyone have any suggestions?