Swarm Coordinator not Connecting to Agents

Hi All,

I’ve been using version 4.18 for some time, and I’ve set up the coordinator to link up our render farm. This has been working very well, but now i’m currently using 4.19, everything is the same but it wont connect to any of the agents. Its a problem coz i have a whole scene set up in 4.19 and cant back track now.

I’m sure i have to so something with the swarm agents on the farm, does anybody know what that is?