Locate the dropdown menu (usually defaults to Main Stream).

Ensure that both the NVR/DVR and the client PC are perfectly synced to the same time zone and NTP server. If the error appears immediately after a DST change, the issue may resolve itself after the next midnight cycle.

One user noted: "If I go to SmartPSS > Playback > Local > Open File > select the file, then it works. Just from the timeline it fails to playback for some specific recordings."

Here are the most effective ways to troubleshoot and fix this issue. 1. Check for Daylight Saving Time (DST) Issues

If you are accessing your cameras remotely using a P2P serial number, the video data must pass through Dahua's cloud servers. If these servers are congested, or if your local upload speed is low, the NetSDK playback request will time out.

: Ensure the required ports (default is often 37777) are open and not being used by other services like FTP servers on the same PC. Alternative Viewing Methods

is missing. This pack is essential for the video playback components the software relies on. Network and Sync Issues Ensure the device status is in the device manager. Daylight Saving Time (DST)

Lower the bitrate of your camera recordings in the device settings to reduce network load.