I have a Motorola SURFboard SB5101 Cable Modem a Netgear mr814v2 wireless router, I obtain the ip address on router status but for some reason my internet communication losed. I verified the configuration router status and note the ip address sb5101 lose (0.0.0.0).Why I lose the internet communication?

Hi, follow the steps below to configure MR814 with your motorola surfboard:

CONNECTIONS:

1. Connect a Ethernet cable from the modem to the WAN port of the router (isolated port).
2. Connect the computer to the router using any one of the 4 available ports. Please make sure that there is no direct connection between the modem and the computer (either using Ethernet cable or USB cable).
3. Power off the modem and the router after making the connections.
4. Power on the modem and wait for the lights, then power on the router.
RECONFIGURE:
1. Open the browser (Internet Explorer, Mozilla Firefox or Safari).
2. Access the router, usually with http://192.168.0.1
3. Login to the router with the Username as "admin" and Password as "password" (please note that the Username and Password are case sensitive).
4. Click on 'Basic settings' from the left menu and select 'Use Computers MAC Address' from 'router MAC Address' section.
5. Click Apply.
6. Once it updates the settings then power off the modem and the router. Power on the modem and wait for the lights, then power on the router.

I hope this information allows you to resolve this issue.

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Regards
Anand

Double check again your your Wan Connection is connect properly, usually it does. And also do not limit your internet connection on PC so that it cannot get obtain IP Address like (0.0.0.0) repair or reset again your internet connection on the Wireless Router.