Try increasing the parameter commtimeout (verify the spelling!).  I saw this
exact problem on the Notes agent a while back.  Upping this timeout helped.
I think by default the value is 60 seconds.  I upped it to 300 seconds the
voila the problems dissappeared.

Please post your results if this works.

Thanks,

Kelly J. Lipp
Storage Solutions Specialists, Inc.
PO Box 51313
Colorado Springs CO 80949
719-531-5926
www.storsol.com
lipp AT storsol DOT com