LAN server crashes after a number of seconds. about swbf2admin

[kingzy21]

[24/03/2023 13:10:18] WARN | Rcon disconnected. System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
--- End of inner exception stack trace ---
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.IO.Stream.ReadByte()
at System.IO.BinaryReader.ReadByte()
at SWBF2Admin.Runtime.Rcon.RconClient.WorkThread_Run()
[24/03/2023 13:10:18] WARN | Server has crashed.

I have exactly the same error here. It's only when LAN is selected or LAN is set to 1 in the ServerSettings.cfg

Going to try and narrow this down. Could possibly be linked to GoG being selected as the server i willl try with gamespy and steam and see if this makes any difference. Also tried selecting different network ip to see if this would help but it looks to be an exception only presented when using the LAN option.

[27.03.23]
This seems to exist with or without SWBF2Admin seems to be a game bug. I cannot get any server to run with the lan set to 1 the patch i have is 1.5 r2 unofficial. I haven't tried this on an unpatched or unmodded SWBF2 install though.

LAN only seems to work if you are in game creating the game. the second you try to start a dedicated server it crashes. (Without SWBF2Admin.) I can also run a server without SWBF2Admin using a shortcut with the specified arguments.
These seem to run unless i enable LAN