Post your exact NVR model number, firmware version, and Smart PSS version in the comments below. Include whether you see the error on one camera or all channels. That info is the key to a final diagnosis.
Remember: Smart PSS is a free tool, and like any free software, it has limitations. For mission-critical environments where playback must work 100% of the time, consider upgrading to a commercial VMS like Dahua DSS Express or migrating to a modern recorder that supports newer APIs. failed to start playback netsdk returns error smart pss best
This error brings your investigation to a screeching halt. But what does it actually mean? More importantly, how do you fix it? Post your exact NVR model number, firmware version,