# Players getting Network Connection Lost when joining public lobby

**URL:** <https://forums.unrealengine.com/t/players-getting-network-connection-lost-when-joining-public-lobby/2514383>\
**Category:** Issues and Bug Reporting\
**Tags:** closed, fortnite-creative, unreal-editor-for-fortnite, fortnite\
**Created:** [May 17, 2025, 1:05am UTC](https://forums.unrealengine.com/t/players-getting-network-connection-lost-when-joining-public-lobby/2514383 "2025-05-17T01:05:32Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![thrax207](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@thrax207](https://forums.unrealengine.com/u/thrax207)\
**Post date:** [June 18, 2025, 12:05pm UTC](https://forums.unrealengine.com/t/players-getting-network-connection-lost-when-joining-public-lobby/2514383/16 "2025-06-18T12:05:14Z")

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We have the exact same issue, especially this join / leave message instantly happening.

@andrej / @Flak have you tested staying in the game for a while?  
In our game it takes 15 minutes for the session to get glitched and unjoinable with 8 players in the game.  
With 4 players, takes around 35 minutes. With 2, around 55 and 1 player 120 minutes.

We outlined clear steps to reproduce if it helps:

> [@\[CRITICAL\] Tycoon Unjoinable “Network Connection Lost” After 15min – Matchmaking Still Sends Players](https://forums.unrealengine.com/t/critical-tycoon-unjoinable-network-connection-lost-after-15min-matchmaking-still-sends-players/2562223):
>
> Summary Tycoon Island gets in a bugged state after 15 minutes playtime with 8 clients. If any player leaves, and a new one tries to join, he will never be able to join. The matchmaking keeps pushing players to the island, and each and every one of them will fail to connect. It completely kills any traction for our island so we have delisted it for now. Support would be greatly appreciated. Please select what you are reporting on: Creative What Type of Bug are you experiencing? Matchmaking S…

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