Please don't worry, if you didn't change the password, the default username and password should be:
Password: (there is no password, please keep it blank)
But if you have changed the password, please follow up the below steps to reset the password:
1. please input arbitrary password to the password, then click "OK"
2. Then "Username /Password Is Incorrect" pops up
3. please click left button and right button of the mouse several times
(please don’t click the right button and the left button at the same time. )
4. then "Restore Default User Are you sure to continue?" pops up, please click "Yes"
5. Then the password should restore the default.
After that, you can go to NVR's System Setup - System Admin - User management - Set password
to reset the password. Hope this helps.
More questions, please contact us freely: email@example.com