xbox one: apex crashes and disconnects me from my network

Sorry to hear it's crashing on you, @lexxohhh. Let me know if these steps below help out at all.

Power Cycle

1. Turn off the Xbox One console by pressing the Xbox button  on the front of the console for about 10 seconds until it shuts down completely.
2. Unplug the console's power cable. Wait 10 seconds.

Important Be sure to wait 10 seconds. This step resets the power supply.

1. Plug the console power cable back in.
2. Press the Xbox button  on your console to turn on the Xbox One.

Clear Mac Address

1. Clear the MAC Address: From the Xbox dashboard select Settings>All Settings>Network>Network Settings>Advanced Settings>Alternate MAC address>Clear, then restart your Xbox.

*Make sure you do not have anything plugged into your USB slot that isn't normally designed for there like a hard drive or controller*

If those steps above do not fix it, I recommend reinstalling the game. The game files may have been corrupted from the installation or during an update.