Razivoid:
I don’t know if your issue was the same as mine but I found a solution. A good step to take now is to check if SWARM agent is running correctly.
Diagnostics:
Navigate to your engine folder: …\4.14\Engine\Binaries\DotNET
and run SwarmAgent.exe (it will be minimised in your tray so double click).
Try rebuilding the lighting in UE4 and have a look at the log inside swarm for any errors. If SWARM cannot access the internet then it won’t do much so there should be one error in the log.
My Solution:
There are a number of applications that depend on the windows service “Windows Management Instrumentation”.
Start > Run… > “services.msc”
Ensure that this service is set to “Automatic” (it should be by default). Change it, and ‘Start’ the service if not.
Try rebuilding the lighting, should work now.
If not then I advise enabling Windows Update and check to see if your .NET framework is up to date.
Good luck.
What do you mean services.msc should be set to automatic? Are you referring to swarmagent.exe? Because that’s nowhere to be found in services.msc for me.