Why Your Dying Light 2 Co-Op Isn't Working

screenrant.com:

Dying Light 2 made co-op gameplay a major selling point, following on the success of its predecessors multiplayer components, but some players have been getting roadblocked by disconnection errors when trying to play co-op online, and there are a number of reasons why their Dying Light 2 co-op isn't working.

While almost every co-op multiplayer or open-world game release ends up with a variety of bugs and network problems at launch, leading to the prevalence of pre-launch online network tests and betas in recent years, few things are more frustrating than getting a group of friends together for a new co-op experience only to find that the network is crumbling under the weight of many users trying to play at once, or in the case of Dying Light 2, giving players frequent «Network Disconnected Error» messages and dropping them from games.

Related: Why Kyle Crane Isn't In Dying Light 2

For some players, their Dying Light 2 co-op multiplayer may not be working because they simply haven't advanced the game far enough for it to unlock properly. To even open up co-op play, the game's prologue must be finished first, and the "Markers of Plague" main story mission completed. After that, players can engage in co-op with others online, but it bears noting that there are a couple of limitations, including Dying Light 2 not having crossplay or crossgen functionality — only players on the same platform and hardware generation can play together.

We are aware that death-loop bug is not the only issue with the game. We’re working hard on fixes for other bugs, including co-op.

Co-op multiplayer issues are made more complicated with Dying Light 2 given the game having come out on variety of platforms, which could each have their own nuances