Gerry, I did modify the algorithm used by an upstream LDM to determine when to flush the connection to a downstream LDM. This modification begins in version 6.6.0. The earlier algorithm flushed the connection more often than every 30 seconds. The modified algorithm flushes the connection exactly every 30 seconds (providing nothing else has been sent on the connection). Your clients are probably seeing this modification. Is it a problem.? Regards, Steve Emmerson Ticket Details =================== Ticket ID: UXT-913259 Department: Support LDM Priority: Normal Status: Closed