Black screen after power adapter failure and new replacement

[pablo147 0]

My kare DVR system with 4 bullet cameras gave a black screen only after 30 months continuous use when the power adapter failed and with a new replacement.

After attempt to reboot get "MAC conflict. This is the default MAC will stop cloud service.MAC:00:0b:3f:00:00:01"

Disconnected hard drive made no difference.

Advice on solution will be appreciated.

[GadgetAssistant 0]

Hello. Have you tried booting the device with the network cable disconnected?

[pablo147 0]

I am a novice but all I have connected seems to be power supply,cameras,mouse and monitor screen. Not connected to a pc or linked remotely to my smart phone. The cameras all show red LEDs at night time.