I have really inconsistent issues with Distributed Rendering - when I open a new file in Max, it will always find DR slaves with no issues - but often if I'm working on a project and decide to enable DR it doesn't find any slaves.
I can literally find no slaves one minute, start a new file in Max and it will find slaves immediately. In the existing file I've tried resetting Render settings to default but get the same issue; switching to a different renderer and back to Corona and still nothing. I've also checked in Backburner and all machines see one another fine.
Any suggestions how to resolve this without having to import everything into the new file (this happens reasonably often - with no reason why).