While the Idletimeout is an issue, the primary pursuit needs to be why the client failed to send any backup data after being given the Active Files inventory at the onset of the Incremental (presuming it is an incremental backup). If nothing found in their scheduler or dsmerror log, a client trace may be needed to see what they think they are doing at that point. Given the client mix showing up, this might turn out to be a networking issue.
Richard Sims
