This can occur after a major firmware upgrade, particularly on the Turbo 4 K-Series DVRs, as the update process may change how the database manages recorded video.
Never use default passwords. Modern Hikvision firmware enforces strong password creation upon initialization, but regular password rotation adds an extra layer of perimeter defense. ds-7232hqhi-k2 firmware
Under the Upgrade section, click and select the extracted digicap.dav file on your computer. This can occur after a major firmware upgrade,