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I've written some logging software in Electron which runs on macOS. I handle the suspend and resume events to stop and start recording automatically when the device is closed/suspended. I've noticed that even with the lid closed, it still wakes up occasionally and records some data. Does anybody know what could be causing this?

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  • Does this happen only while plugged in, or does it also happen on battery? Under System Preferences > Energy Saver > Power Adaptor tab have Wake for Wi-Fi network access selected? Have you done an SMC reset recently? - support.apple.com/en-us/HT201295 – drivec Feb 20 '18 at 15:32
  • Power Nap? support.apple.com/en-us/HT204032 – Allan Feb 20 '18 at 16:16
  • This occurs on my personal Mac and on 2 others we use for testing. For mine at least I've noticed its done it on battery when I've been on a flight. – Tim Feb 20 '18 at 17:57
  • Although reading the Power Nap docs it says Computers with 2013 or a later year in the model name use Power Nap until the battery is drained – Tim Feb 20 '18 at 17:58

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