Not sure if this is the right thread to ask but it's related What is the unit of time to determine the amount of most users online? 15 min? And if so, is there a place where that can be changed? (For example to 30 min, 1 hour, etc)

I split your question off into it's own topic - but there is a 14 minute timeout. This is defined at the PHP level, and can be changed by adjusting the "session.gc_maxlifetime" setting in your PHP configuration.

Okay, thanks Ryan.

Where is this setting located ?

It's saved inside the settings ( \IPS\Settings::i()->most_online )