I last used Google Now on my way home from work on Tuesday. Normally, I would open Google Now. Then, when I say "OK Google" it would respond, and I could do what needed to be done. However, this morning, on the way into the office, no go. I can open Google Now, but the "OK Google" command does not work.
I checked the setting in Google Now, and Hot Word detection is set to On. Also, the microphone icon in the search bar on the Google Now screen is white. ( I learned this means that OK Google key word is active)
The only thing I have changed since then is updated applications as they become available. The only Google app I recall updating since Tuesday was Google+, but there might have been other Google apps, and I know I updated several other applications.
Can anyone help?