All, I operate a network of RTCM's and occasionally find on the individual RTCM console the syntax "RX Packet Out of Bounds by [insert value] ms. The network is comprised of proper Aviat Microwave and Cisco switch gear, with extremely stable latencies, sub microsecond, as reported by Solar Winds. That said, can someone help to enlighten me where to begin troubleshooting? This is what is reported by selecting "98 - Status": Current Samples / Sec.: 8000 Current Peak Audio Level: 56056 Squelch Noise Gain Value: 47, Diode Cal. Value: 41, SQL pot 185 Current Time: Sun May 27, 2018 23:30:42.300 Last Rx Pkt System time: 05/27/2018 23:30:23.020, diff: 19280 msec Last Rx Pkt Timestamp time: 05/27/2018 23:30:23.020, diff: 0 msec Last Rx Pkt index: 160, inbounds: 1 The "Last Rx Pkt System time" is always off, and I am unsure how to synchronize it to current time (this doesn't appear to impact performance). However, "Last Rx Pkt Timestamp time" is always perfectly synchronized. The out of bounds message is typically found on the Master Timing Source and at least one other RTCM. While reporting out of bounds, simulcast operation is unacceptable until the RTCM's reporting the same are reset. I cannot correlate any network issue to the RTCM messaging. Kindest Regards, Kevin Babich | N9IAA Valparaiso, IN 46383 Mobile: 219.406.9707 Cessna 421 Cesssna Conquest I/II Beechcraft King Air 90/200 ".It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat..." -Theodore Roosevelt