Multi-User Editing Local Server Issues

[DustinClaridge (DustinMyDudes)]

Hello, I am having an issue with Multi-User Editing.

My main problem is that I cannot even start a Local server. Below is the main error I get even after trying to make either a local server/ Using my local IP/ Using Hamachi as a VPN.

LOG:

LogUdpMessaging: Initializing bridge on interface 0.0.0.0:0 to multicast group 230.0.0.1:6666.
FUdpSocketBuilder: Failed to bind UdpMessageMulticastSocket to 0.0.0.0:6666
FUdpSocketBuilder: Failed to configure multicast for UdpMessageMulticastSocket (loopback: 1, ttl: 1)
FUdpSocketBuilder: Failed to create and initialize socket UdpMessageMulticastSocket (last error: 0)
LogUdpMessaging: Warning: StartTransport failed to create multicast socket on 0.0.0.0:0, joined to 230.0.0.1:6666 with TTL 1
LogSlate: Window ‘Project Settings’ being destroyed
LogSlate: Window ‘Project Settings’ being destroyed
LogConcert: [Pending] Launching Unreal Multi-User Server…

Also, I fully understand this is still in development, I just want to test as much as possible.

[fcascinelli]

hi,

I’m having the same issue, did you find a solution?

cheers
fc

[ThD-Lee]

Same here,

we tried changing the endpoint IPs manually for Server and Client in the engine.ini like explained here: Advanced Multi-User Networking | Unreal Engine Documentation

seems to work so far

[DopDie]

Happens when ur using a VPN.

[jshalyh]

我想我找到答案了：

修改一下端口即可，6666端口被其他程序占用了。
或者用cmd命令 看下 6666端口被哪个程序占用 直接结束他就行了。
-ano|findstr 6666

记住这个PID值，再去任务管理器里面找到 这个PID对应的程序，结束掉他。