UE5.1 crashes every time I turn on my network

[SupportiveEntity]

Hey @BillBorez and @VioletLightwave, come across a couple workarounds the community had found for this issue if you’d like to give it a shot.

Unreal 5.1.0 Preview crashes on startup

Hello, After some research & test, here is my fix : 1/ In C:\Users\yourname\AppData\Local\UnrealEngine\5.1\Config Add : [/Script/UdpMessaging.UdpMessagingSettings] EnabledByDefault=False EnableTransport=True bAutoRepair=True MaxSendRate=1.000000 AutoRepairAttemptLimit=10 WorkQueueSize=1024 bStopServiceWhenAppDeactivates=True UnicastEndpoint=0.0.0.0:0 MulticastEndpoint=230.0.0.1:50000 MessageFormat=CborPlatformEndianness MulticastTimeToLive=1 EnableTunnel=False TunnelUnicastEndp…

Future Edit: Another possible fix, brought it here for anyone running across this thread in the future:

Frequent freezes/fps drop in Unreal Engine 5

For others that finds this thread hoping to solve stuttering in Unreal Engine Editor, go to your Project Settings → Plugins → UDP Messaging → EnableTransport (Set this to false). This solved it for me, I had the Editor FPS drop happen in 4.27, 5.0 and 5.1, no content browser up, empty scene and no blueprint windows up. PC specs: 3080Ti, 128GB ram, threadripper CPU (24cores) and so forth. PS: More info, UDP is related to network settings. If you are using a VPN that might cause this issue too…