How much did you pay and what is the model no of the cams?

Have you changed the substream to h264?

Does BI report any signal issues?

You could try continuously pinging the cams up from the BI PC to see if the response times are the same/similar or if they vary?

Try the fps drop and then monitor the stream on the cam itself to see if it helps. Some cams just can’t cope with running the cam at the max res and max fps as the CPU just can’t cope. Another thing I’ve noticed is that you do have sub streams enabled but that is set to h265 so change that to h264 t...

Has anything changed recently?

Unless I’ve misunderstood the request I have to agree with @MikeBwca, not only would the zones and settings need separating but triggers and alerts would also need separating as presumably you’d want to know which zone triggered and therefore do something with that trigger. This would also mean that...

Do you get the same interruption of the live stream if you actually logon to the cam itself and watch the live feed? You can also watch the BI live stream at the same time. If you get this issue on the live stream on the cam itself then it’s not a BI issue. This is why I asked to try lowering the fp...

Also increase you receive buffer from 6 to say 12 or even 18 to see if that makes a difference.

Try dropping the frame rate down to 20 or even 15 to see if it helps, also don’t forget to also drop the iframe rate.

You don’t really need 30fps for security cams, I run most of mine at 15fps.

If BI hasn’t been updated then it’s more than likely that a recent Windows or drivers update is the cause of the issue?