Hello, I am new to Swarm and Networking.
I have light-mass render time of 3 hours for a level and I would like to use multiple machines to speed up render.
Do the following machines work well together:
What do I need to network these 3 machines for SWARM?
Do I need physical LAN cables?
Can I network them over WIFI only?
I would really appreciate the help 
I got the coordinator to detect the other machine,
But i get this error:
11:17:01 AM: [Job] Accepted Job 87671041-4C685483-F22FD987-B78DCBCF
11:17:33 AM: [Job] Error: Failed to pull a required file from remote Agent: UnrealLightmass-CoreUObject_2017-06-20_03-58-32_5025728-64bit.dll
11:17:33 AM: [Job] BeginJobSpecification: Failed to cache necessary job files
11:17:33 AM: [CloseConnection] Closing connection 219020D9 using handle 219020D9
11:17:33 AM: [CloseConnection] Connection confirmed for disconnection 219020D9
11:17:33 AM: [CloseConnection] Closing bi-directional remote connection (219020D9)
11:17:33 AM: [CloseConnection] Connection disconnected 219020D9
11:17:33 AM: [MaintainConnections] Remote connection has closed (219020D9)
11:17:33 AM: [MaintainConnections] Removed connection 219020D9
11:17:33 AM: [MaintainConnections] All connections have closed