FAQ/TCP Blockers
From VFXPedia
Fusion consists of 4 main components; Fusion.exe, eyeonScript.exe, eyeonServer.exe, and eyeonQTServer.exe. These 4 applications need to communicate over TCP/IP port 10251 for things like the bins system, network rendering, and scripting functions to work correctly. We have encountered a number of 3rd party applications that do not correctly handle the passing of information between these applications, incorrectly label them as malicious or as a possible threat to your computer, and/or offer incomplete implementations of the TCP/IP protocols. The problems may manifest themselves as inability to network render, run scripts (including "save as") or Fusion may crash on startup.
Below is a list of applications known to interfere with the TCP/IP communication between eyeonScript and Fusion or RenderNode and includes;
