Hello,
I have a "DS-7608NI-I2 / 8P" NVR that was used until now only with 2 x 2 Mpx camera and it worked without issues.
Recently I've bought 2 x 4Mpx AcuSense cameras and start to have issues on playback (sequence was not continuous, it was running for example for 2 sec then freeze for 10-15s...