Hi,
looks like parallel dscf, right?
Did you set the location of the integral files (twoint) to a local directory? If not, all clients write on an NFS disk which will slow down your calculations (dramatically, if you are unlucky, can even make the calculation slower than the serial version...), and this might cause network problems either.
Please set either the size of the twoint files to zero by simply editing the control file at the $scfintunit and set size=0, or use Turbomole 6.0 which will not use the disk by default any more for integral storage.
Regards,
Uwe