Why do you have to guess, the top of the forum says in BIG RED Letters "Do not allow your PC to go into standby mode while Cumulus is running - read the readme.txt!
Not a guess as I read that too; well too similar to the RTFM thing...I do come from a world of creating and writing standards and typically like to learn the hard way cuz it sticks better sometimes inside of your noggin. I am not a figment of my newton though...well are you a figment of my newton? Well you must be bored or something and have nothing to say these days eh?
That said over the years and specifically relating to Windows as it went from 3.0 to current Windows 10 feature tweaks, defaults typically are hidden way better with multiple steps such that the user has to look there in multiple layers of whatever to make adjustments. Sometimes here personally my hands work but it is so automatic I do not pay attention (like dialing a phone number and not seeing the numbers; if that makes sense.
I am a user of Cumulus;and a forum participant just like you are.
Well new to CumulusMX just like many folks here. I do not welcome insolence though.