Question:
Why is DHCP grayed out or cannot be enabled?
Answer:
The most common cause for this is that the PPPoE is enabled on the NVR. You will need to access the NVR using a web browser. After logging into the NVR using the IP address go to Configuration > Network > Basic (if not present in Basic check Advance) > PPPoE and disable it then press Save or Apply. From the local GUI got to Main Menu > System Configuration > Network > TVP/IP > then select the tab PPPoE, disable it and select Apply.