There are two main settings for XBOX One that you need to configure to make sure you don’t time out. First, is the IDLE Options which is a relatively new setting Microsoft introduced in the last few updates, this needs to be UNCHECKED. You can leave the dim timer alone and just uncheck that setting. Makes sure that it is unset. It can be found under your Xbox Settings -> Preferences – Idle Options
The second option you will want to change is your Power Options to make sure your XBOX doesn’t turn off while you afk’ing. This is by default 6 hours I believe, change to this to Do not turn off automatically, so that your XB1 doesn’t turn off until you switch it off.
Sometimes you may want to set this to 3 hours if you only just have a bunker, so when your supplies are depleted, you may not want your xbox on wasting power, or if you want to go to sleep, set it so it turns off after 2-3 hours so it can produce and use 1 bar full of supplies.
A trick I use is to wait until all my supplies have been delivered to my bunker, then wait 1-3 minutes for my supplies to drop down a sliver, then buy supplies for $15K. At this point, you want to set your spawn point to your apartment, then change sessions, then start the Blow Up mission. Watch your TV for 2 hours or 2 hours 10 minutes, as it takes 9 minutes for your supplies to be delivered. Sometimes you will come out of your contact mission and your supplies have not been delivered, so you need to wait, so coming out of the mission a little early will prevent your bunker to stop producing.
What I also like to do is sit in a contact mission like Blow Up for 2 hours, then after 2 hours, I will complete the mission earning $18K. The money alone from this mission will pay for your $15K worth of supplies you purchased prior to going into the mission.
Watch my video I created with the steps above