If not done yet, you can set options 4-1-3, 4-2-dnetc.log and 4-3-fifo
or add these lines in your dnetc.ini :
[logging]
log-file-limit=fifo
log-file=dnetc.log
log-file-type=fifo
This will create a logfile, never bigger than 100KB, so you can monitor all activities the client is performing.
btw, is this in the FAQs ?