Network error occurred when connecting to a server after matchmaking completed

General Issues and Bug Reporting
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1

Summary

For some reason after release Balistic and 33.10, I can’t test all my islands, every day has the same error

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

only try test island in UEFN

Expected Result

Play the game

Observed Result

LogOnlineSession: Warning: MCP: FindSingleSession request failed. Invalid response. code=404 error={
“errorCode” : “errors.com.epicgames.modules.matchmaking.unknown_session”,
“errorMessage” : “unknown session id d11f82e4a14042e0bb36d765e0f58483”,
“messageVars” : [ “d11f82e4a14042e0bb36d765e0f58483” ],
“numericErrorCode” : 12101,
“originatingService” : “fortnite”,
“intent” : “prod-live”
}
LogOnline: Warning: OSS: Async task ‘FOnlineAsyncTaskMcpFindSingleSession bWasSuccessful: 0’ failed in 0.144198 seconds

Platform(s)

windows

2

Seeing similar issues. The client gets stuck on “Loading into your Edit session…”, and then a few minutes later gets booted to the Frontend with a “There was an Error, Network Connection Lost” error. Haven’t been able to launch my islands from UEFN properly since the Balistic/33.10 release.

1 Like
3

Try this forum its got info that will no doubt help

this post

4

Same here. I am wasting few hours everyday trying another way around but cant seem to find anything.