The process of downloading the SnapAV Luma Surveillance 500-Series 4 Channel NVR Firmware 3.1.2 Build 151224 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the SnapAV Luma Surveillance 500-Series 4 Channel NVR Firmware 3.1.2 Build 151224 driver from the primary server - this is the manufacturer’s D-Link official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the SnapAV Luma Surveillance 500-Series 4 Channel NVR Firmware 3.1.2 Build 151224 diver.