Hikvision 7716 NVR stuttering/freezing during playback

Just had above NVR professionally installed with 7 3MP Hikvision cameras. Notice stuttering or freezing of playback particularly if there is motion in the scene pretty much all the time. Similar with remote and local access.

Current settings:

2048x1536, 8fps, 2048kb max bitrate, continuous record on all channels with motion detection enabled.

I thought this might be CPU saturation so I decreased frame rate (to 4) and image record resolution (1080P) on all cameras with no change. Real time viewing is fine. All firmware up to date. Wanted to see if I could troubleshoot this a bit more before I call installer.

Thanks in advance for any tips/help.

Did you try downloading the backup and using the player to backup ?

Sometimes it might be the recording is fine, however either the computer or the NVR or your network lack the sufficient resources/bandwidth to smoothly playback the video in realtime.

The problem occurs when I playback directly from the NVR, so that rules out the network, which is all gigabit backbone.

I did not try playing a backup. Good suggestion but honestly if that is what I have to do to playback video I would find that unacceptable.

Could be the NVR HDD as well.

It's currently recording 7 Cams , and is also attempting to retrieve the recording on another sector.

Notice stuttering or freezing of playback particularly if there is motion in the scene pretty much all the time.

Could also be your computer. If there's motion, it takes more hardware to decode. Depending on your recording bitrate as well. If you are setting to constant/variable/event stream that's higher than main stream.

I thought this might be CPU saturation so I decreased frame rate (to 4) and image record resolution (1080P) on all cameras with no change.

Doesn't really matter since it's all depending on the bitrate.

Try downloading and playback. That'll isolate if it's NVR HDD or Network Speed issues.

Try playing back on another computer/faster computer. That'll isolate your client issues.

I found a chart on Hikvision.com in tech documents section with recommended bit rates. Based on my cameras and resolution mine were set too low. I increased to 4k and so far playback of recordings with the new settings has been much better.

Oh great.

Miss that out.