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                     Once the WAN_IP/DNS gets down, Device will stop the PING functionality.

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Here, brlan0 doesn't have RUNNING label . So RPI device unable to connect with clients(Means STOPS LAN functionality).

To recover this, we need to reboot the device.

Troubleshooting

                    1.  Using selfHeal logs to trouble shoot the run-time errors. SelfHeal logs will be created the below path,

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                             Failure Scenario :

                                         191007-09:00:13.899713 [RDKB_SELFHEAL] : GW IP Connectivity Test Successfull
                                         191007-09:00:13.909201 [RDKB_SELFHEAL] : IPv4 GW Address is:192.168.60.1
                                         191007-09:00:13.918684 [RDKB_SELFHEAL] : IPv6 GW Address is:
                                         191007-09:00:13.972966 RDKB_SELFHEAL : Ping server lists are empty , not taking any corrective actions
                                         191007-09:00:14.119985 DNS Response: fail to resolve this URL www.google.com
                                          191007-09:00:14.152808 RDKB_SELFHEAL : Taking corrective action