Comtrend Corporation AR-5381u User Manual page 13

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A malfunction is any error of internal sequence or state that will prevent the device
from connecting to the DSLAM or passing customer data. This may be identified at
various times such after power on or during operation through the use of self testing
or in operations which result in a unit state that is not expected or should not occur.
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IP connected (the device has a WAN IP address from IPCP or DHCP and DSL is up
or a static IP address is configured, PPP negotiation has successfully complete – if
used – and DSL is up ) and no traffic detected. If the IP or PPPoE session is dropped
for any other reason, the light is turned off. The light will turn red when it attempts
to reconnect and DHCP or PPPoE fails.
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