By setting a low value of DTIM and beacon interval you could keep your devices awake indefinitely so they never go into PS mode when idling though this would be rather useless dont you think? The reverse is also true, having higher multicast rate WILL NOT shrink the range of your wireless network. My knowledge on the subject is limited, but the 'Wake reason' suggests it has something to do with this feature: About Wake on Demand and Bonjour Sleep Proxy - Apple Support, How are the Energy settings configured? I don't know if this has something to do with Aptio firmware (Is a Lenovo desk PC, Aptio V firmware). Maybe its linked with that. Its a point to multipoint transmission type allowing one-to-many or many-to-many realtime communication over a wifi network. After some time the IEEE needed a method to provide a certain quality of service to clients from a STA or AP (Station or Access Point). I have no sensors in HWSensors (Obvious, you deleted the kexts from Clover). Hence why too high and too low are bad settings. In response to Esquared, Seems like the problem is "Wake reason: EC.DarkPME (Maintenance)". "pmset -g assertions" which shows the following. What are the symptoms and what is the application? MacBook Pro does not go into sleep mode after upgrading to Yosemite. In response to Xanderus. I've seen updates for the BIOS, but I'm afraid of breaking things I have been on El Capitan for a while. U-APSD (Unscheduled Automatic Power Save Delivery): Your client devices signal the router to transmit any buffered data and then the router sends a sleep signal back to the device when finished. You may consider turning it on if your wireless router is serving multiple devices that do not handle sensitive data. 8/6/16 4:17:13.000 AM kernel[0]: ARPT: 15288.666284: wl0: powerChange: *** BONJOUR/MDNS OFFLOADS ARE NOT RUNNING. hidd is the "human interface device daemon" and it's going to prevent sleep as long as you're typing or moving the mouse or similar. *RAM : 16GB, 2x8GB, DDR4, 2666MHz Have also done SMC reset. Usually found on enterprise systems its best used in wifi mesh networks and multiple AP systems that can work together to determine the best AP to connect to. Most routers will say this is 100 ms or 100 milliseconds. Well the rate to do this is significantly lower then the rest of the networks unicast rate. Long Preambles uses longer data headers which allow for better error checking. Here are the results. Keep them on simple as that now let us talk about them. Ask Different works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. pepitillo, May 19, 2018 in OSx86 10.13 (High Sierra). This is usually determined by a time out bit in the data headers. So let us now talk about the advanced settings within your router that seem a bit esoteric for the common person. Long has 8 and Short has 4. I think I have beat the dead horse long enough. Unexpectedly Wikipedia has a rather crude demonstration of this: Now that you know about beacons, The beacon interval is the time interval between beacon transmissions. Isolates all devices from crosstalking with one another. Wireless MultiMedia Options or Extensions. I would keep this option on. By I've been fighting this for months and I can't seem to get it to sleep consistently. Delivery traffic indication map or DTIM Interval goes hand in hand with the Beacon interval setting.