How do I get my streak back?
I lost my streak, but I was finished with my activity as soon as the clock turned 12 (midnight). I don't understand how this happened, but this is the second time my streak has been lost.
Then that is relying on luck which is not very sensible. Can you guarantee that your time is exactly the same as Duo's server? What would happen if your internet connection went down just before updating it. or Duo's servers were so busy at that time that it couldn't respond immediately?
You should always leave a good margin of error in case of possible problems, either that or have a streak freeze in waiting to protect you.