March 29, 2016
February 26, 2016
Also make sure you don’t have telnet ports forwarded in your router, and at least change the local IP – incase someone is jumping on and wiping the accounts. They can do that with telnet, for example – depends on the DVR/NVR though, newer ones are more difficult. Also as mentioned it could be bad hardware causing the OS to reset (wiping the accounts).