User`s manual

78
Synchronization signal from the telephone company. A solid WAN LED on the
router also indicates the detection of a DSL signal from the
telephone company.
Fail: indicates that the DSL modem does not detect a signal
from the telephone company’s DSL network. The WAN LED
will stop blinking and the LED will stop illuminating (i.e. go
blank).
ISP Connection Pass: Indicates we can access the WAN service like the
Gateway and DNS.
Fail: Indicates we cannot access the WAN side.