Available Swarm Agents not Connecting?

Hi,

I have swarm connected to a render farm at work. At the moment if somebody else renders with those node it kills my distribution, and i lose connected agents. BUT, when those nodes become free again, these agents say they are available but don’t wont re-connect again until the render is finished.

It means i have to either quit and start again or wait for a very long render. Is there a way to force agents to connect and distribute? or something similar?

Thanks