Click it to prevent your Mac from automatically going to sleep, dimming the screen or starting screen savers. I don't know what to make of this and wish I could have a definitive answer as to why the machine was initially not staying awake. Caffeine is a tiny program that puts an icon in the right side of your menubar. I then turned off "Power Nap" expecting it to revert to the previous state of becoming unresponsive but it has now been a week later and it is still responding just fine. I was out of town for a week and when I came back I was able to connect with no delays.
So far this seems to be working but I am looking for a definitive answer about how to keep an iMac running MacOS Sierra awake and available for network connections as a web server.Īfter turning on "Power Nap" in the Energy Saver prefs the machine stays awake as expected. I recently checked "Enable Power Nap" in the Energy Saver prefs pane hoping that this might have the undocumented effect of keeping network connections awake. I have used sudo systemsetup getcomputersleepĪnd confirmed that sleep is indeed set to "Never". It seems logical that this setting should keep the iMac awake and available for incoming network connections, as it did in 10.5, but it isn't. Checked: Prevent computer from sleeping automatically when display is off.
I have set System Prefs -> Energy Saver to. The problem I am having is that the new iMac is losing network connectivity ~15 minutes after the screen goes to sleep. We recently purchased a new 21.5" iMac with MacOS 10.12 Sierra to replace the older iMac. The application serves up a perfect mix of maintenance tools and tweaks, all accessible through a clean. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get the most out of their computers every day. I've got a client who uses an older iMac running OS X 10.5 to serve as a LAN web server. Cocktail is a general purpose utility for macOS that lets you clean, repair and optimize your Mac.