# Cannot test private island (Network connection lost) **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** fortnite-creative, unreal-editor-for-fortnite, fortnite\ **Created:** [April 9, 2024, 8:27pm UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104 "2024-04-09T20:27:24Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![CJM360](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CJM360](https://forums.unrealengine.com/u/CJM360)\ **Post date:** [April 9, 2024, 8:27pm UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/1 "2024-04-09T20:27:24Z")
### Reference ID 122685480932 ### Please select what you are reporting on: Unreal Editor for Fortnite ### What Type of Bug are you experiencing? Matchmaking ### Summary When I try to launch my private island after passing verification and receiving island code, it always tells me ‘There was an error, Network connection lost.’ ### Steps to Reproduce Launch Private island via island code from Fortnite on Xbox and PC ### Expected Result To Launch the game to be able to play test ### Observed Result Receive the error mentioned above every time. ### Platform(s) Xbox PC ### Island Code 122685480932 ![Privateisland error](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/4/4/f44122365a1e1f9b86592deef2c9618cf02d79e7.png) ---
**Author:** ![CJM360](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CJM360](https://forums.unrealengine.com/u/CJM360)\ **Post date:** [April 10, 2024, 5:35pm UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/2 "2024-04-10T17:35:32Z")
Update my Nat type is set to open and I can load other maps. If anyone can offer advise or help really need to play test. ---
**Author:** ![HINGEDEMON](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@HINGEDEMON](https://forums.unrealengine.com/u/HINGEDEMON)\ **Post date:** [April 17, 2024, 1:16am UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/3 "2024-04-17T01:16:58Z")
any fix to this??? ---
**Author:** ![CJM360](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CJM360](https://forums.unrealengine.com/u/CJM360)\ **Post date:** [April 23, 2024, 10:19am UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/4 "2024-04-23T10:19:17Z")
@HINGEDEMON I had to load my island settings again and all worked. ---
**Author:** ![TelesphorosGames](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/telesphorosgames/32/924355_2.png) [@TelesphorosGames](https://forums.unrealengine.com/u/TelesphorosGames)\ **Post date:** [May 14, 2024, 2:20pm UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/5 "2024-05-14T14:20:32Z")
can you elaborate on your steps to fix? my issue is exactly the same ---
**Author:** ![CJM360](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CJM360](https://forums.unrealengine.com/u/CJM360)\ **Post date:** [May 14, 2024, 9:42pm UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/6 "2024-05-14T21:42:28Z")
If you go into the content drawer to Fortnite/Devices you should have island settings here, drag this back into your map ---
**Author:** ![TelesphorosGames](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/telesphorosgames/32/924355_2.png) [@TelesphorosGames](https://forums.unrealengine.com/u/TelesphorosGames)\ **Post date:** [May 15, 2024, 3:34am UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/7 "2024-05-15T03:34:42Z")
dang was hoping there was more to it 😅 tried that the other day but to no avail. so far my team mate who is using an xbox can’t connect to my uefn session with me at all. Anyways thanks for the help and for the response, I’ll respond here if i figure out anything else ---
**Author:** ![davidpkami](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/davidpkami/32/1040403_2.png) [@davidpkami](https://forums.unrealengine.com/u/davidpkami)\ **Post date:** [May 15, 2024, 4:23pm UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/8 "2024-05-15T16:23:06Z")
This is not working at all. This week is eidno UEFN’s most unfortunate week. I don’t remember any other week like this since its launch. Right now we can NOT release a critical update to one of our creations and we can NOT publish a new project due to this error ([Moderation issue in UEFN project](https://forums.unrealengine.com/t/moderation-issue-in-uefn-project/1857362)). Also,we still do NOT know when this will be fixed [Critical: High Ping and Lag With Maps That Have Larger Areas To Play In - #44 by DrKuf](https://forums.unrealengine.com/t/critical-high-ping-and-lag-with-maps-that-have-larger-areas-to-play-in/1797887/44) ---
**Author:** ![davidpkami](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/davidpkami/32/1040403_2.png) [@davidpkami](https://forums.unrealengine.com/u/davidpkami)\ **Post date:** [May 16, 2024, 11:16am UTC](https://forums.unrealengine.com/t/cannot-test-private-island-network-connection-lost/1796104/9 "2024-05-16T11:16:31Z")
Just tried deleting the folder C:\Users\User\AppData\Local\UnrealEngine\Common\DerivedDataCache It didn´t work. I still can not launch memory calculations. The project is stuck