Many older DVRs (specifically generic H.264 models) use a system based on the internal clock of the DVR. How to Reset DVR Password
Once you regain access, immediately navigate to the User Management or Account settings to set a new, secure password you’ll remember—and perhaps write it down inside the DVR casing for the next person who inherits the system. How to Reset DVR Password
On most (especially the 4-channel and 8-channel H.264 models), the factory default login credentials are:
If the default passwords do not work, you can use these methods to regain access: Hardware Reset Button
Click on the buttons to change the PopCard background.
Click on the button to hide or unhide popcard elements. tronitek dvr admin password