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I have a real head scratcher here. Has anyone ever encountered a situation in which a network can maintain a certain amount of data transfer over a short period, before dropping off suddenly? Restarting the program responsible for the data transfer eliminates the problem, temporarily.
I'm working with a small IP camera network - 3 installations, a total of 20 cameras running over CAT6 and POE into switches. Each installation is linked to the monitoring center via Ubiquiti Nanostations, ptp links. All cameras are monitored via a workstation running Blue Iris.
Recently we've been having some issues with low framerate - 1, 2 FPS. I noticed that if I restart Blue Iris, the frame rates increase, with a corresponding increase in network transfer (max is approx. 5500kB/s total). Strangely, after about 8 minutes, the speed drops 10-fold to ~500kB/s, and won't recover unless I restart the monitoring program. As soon as I restart, it works great. For another 8 minutes.
I've switched monitoring workstations, the PC isn't the bottleneck. I don't think that anything is overheating - Spot checking the switches doesn't reveal anything burning hot, and I imagine if it was a heat issue, the speed wouldn't recover with no time delay (ie. restarting the program immediately fixes the issue).
Thanks
I've had some FPS limiting issues when I upgraded to Blue Iris 4 for some reason last July. Reverting back to Blue Iris 3 fixed those issues for me. I'm sure you've already figured something out, just my 2¢ – jAce – 2016-03-02T22:52:58.497