Place your DVR and security cameras on a separate Virtual Local Area Network (VLAN) to prevent lateral network attacks. If you need help with a specific Dahua model, let me know: What is the exact model number of your DVR? What year was the device purchased or installed?
Change from 37777 to a random five-digit number (e.g., 47777 ). Disable Unused Features dahua dvr default password
Enter the code on your DVR screen to unlock the system and create a new password. Method B: The Physical Reset Button (Hardware Reset) Place your DVR and security cameras on a