This error typically occurs when the SmartPSS software cannot establish a proper communication stream for historical footage, even if live view works perfectly. Quick Fixes
Time Synchronization: Differences between the camera time and NVR time can cause playback to fail or skip. Ensure NTP is enabled on the NVR to synchronize time across all connected cameras. This error typically occurs when the SmartPSS software
Software Glitches: Occasionally, the SmartPSS background service hangs. It "thinks" a previous playback session is still active, thereby locking the new request out. User lacks rights for remote playback; device returns