Hi, I had a batchrender problem and now I solved it.
I had Maya6.5 installed on my computer and everything worked excellent. I also had Zonealarm firewall protection running. No problem.
I then earned some money and bought a new powrfull computer. I installed all the programs I had on the old computer onto the new. Also Zonealarm firewall. And now the batchrenderer didn't work. Not even from the CMD line!
I asked around and people surgested to turn of the firewall (wich I had tried and wich didn't work).
I now UNINSTALLED Zonealarm and.... here... is... BATCHRENDERER! It's back.
So the conclusion is: Even if a program is'nt actuallu running on your computer, it STILL can have a negative influence on MAYA. Not untill I actually removed the program from the intallation did it help.
I just found out that ZoneAlarm version 6 has some *serious* problems, in general!
I was told to avoid upgrading to it at all costs. I'm running Zone Alarm Suite
version... oh shoot!!! Mine has already upgraded. Ah, well. I'm running 6.1.737.000
but I haven't tried batch render yet. You might want to try backing up to an older
version of ZoneAlarm and see if the problem goes away.