If you're getting Network Disconnected error in Dying Light 2, you can find some solutions in this post.
How to Fix Dying Light 2 Not Launching PC/Xbox/PS5/PS4? - MiniTool
How to Fix the Current Network Connection Has Been Lost Error in Helldivers 2
PS3 - Fault finding YLOD with the SYSCON - First steps and Error reporting, Page 126
Dying Light 2 Co-op Not Working? Try These Fixes - The Teal Mango
PS3 - Fault finding YLOD with the SYSCON - First steps and Error reporting, Page 126
Dying Light – How to Fix Connection Issues – Complete Tutorial
Fix: Dying Light 2 Network Disconnected Error
Fix Dying Light 2 Co-Op Not Working - Disconnects & Server Issues
Dying Light 2 Network Disconnected: Easy Fixes