They've had some luck disabling UDP transport as mentioned in the following articles:

However, this doesn't help them for Twinmotion. They are looking for an option to disable DirectLink on the plugin entirely for both UE/Twinmotion or some other workaround to the UDP flooding. 

Steps to Reproduce
  • When using Datasmith with UE/Twinmotion simultaneously in a university lab environment (100+ computers running Rhino 7) Datasmith floods the university network with UDP traffic on 230.0.01/6666
  • When a few computers have Rhino open, it doesn't present an issue, but the more computers open Rhino, UDP traffic gradually causes CPU utilization to rise on the network, slowing traffic to a crawl
  • When the Datasmith plugin was disabled and they restarted Rhino, the UDP traffic ceases and network returns to normal

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-194060 in the post.

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CreatedAug 28, 2023
UpdatedFeb 26, 2024