fix-2016-macbookpro-battery-drain-while-sleeping.txt

Two commands that will solve this :
sudo pmset -b tcpkeepalive 0
sudo pmset hibernatemode 25
To disable this just use (this will revert everything back to normal.
sudo pmset -b tcpkeepalive 1
sudo pmset hibernatemode 3

==> note this will disable also "find my mac"


After you enter your password for sudo it gives you a warning saying some features may not work properly but it disables internet during sleep.

You can check it works by running:

pmset -g

Which should show "tcpkeepalive 0"

And you can of course reverse it at any time by running:

sudo pmset -a tcpkeepalive 1

Easy!

Personally I like keeping this off as it saves power and my laptop has absolutely no reason to connect to the internet during sleep.