Making "ResolutionConnectionTimeout" more lenient in PIE

Development Programming & Scripting Multiplayer & Networking
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1

In our project, when launching PIE (as client, not under one process) with multiple clients, all but the first (editor viewport) client timeout with the following message:

Error: UEngine::BroadcastNetworkFailure: FailureType = ConnectionTimeout, ErrorString = UNetConnection::Tick: Connection TIMED OUT

due to exceeding “ResolutionConnectionTimeout”.

Is there a way to increase that value for PIE (including additional clients launched by PIE) without modifying the engine and without affecting behaviour in cooked builds?

I tried applying “TimeoutMultiplierForUnoptimizedBuilds” in UIpConnection::GetTimeoutValue if (Resolver->IsAddressResolutionConnecting() && (WITH_EDITOR || UE_BUILD_DEBUG)) and that does the job, but I’d prefer a solution that doesn’t require modifying engine code.

Thanks,

Alick

2

Steps to Reproduce
1: Launch play in editor, as client, not under one process with Number Of Players >1 (the larger this number, the more likely it is to happen)

2: Observe some clients lose connection to the server after 20s.

3

Hi,

I believe the only way to change the ResolutionConnectionTimeout without engine modifications is in your project’s DefaultEngine.ini, under “[/Script/OnlineSubsystemUtils.IpNetDriver]”.

If you want this to only affect the editor, you’ll need to implement a workaround to only have this config value applied to the editor. You can find more info here: [Content removed]

Thanks,

Alex

4

Thanks for the speedy response [mention removed]​ !