Is it possible to do a distributed render using unified sampling. My tests through Qube! to machines running mental ray standalone 220.127.116.11 haven't been successful.
The error is RC 4.0 fatal 081501: interrupted by signal 11 or DB 2.7 fatal 041501: interrupted by signal 11 if that helps.
I can get more specific on the setup but if it's just not possible to do DBR and unified then I'll shelve it for now.