Sharp AHT-E300 - Manual (Page 36)

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AHT-E300 ADSL ROUTER
Problem: Power LED is not flashing.
1. Check the power adaptor is correctly connected.
2. Check the power adaptor is 14VDC and 1.0A. If it is not, don’t connect that power
adaptor to the power jack in the modem and contact your local distributor to change the
power adaptor.
3. Touch the power adaptor just a moment. If the temperature is too high, disconnect the
power adaptor from the power source and contact your local distributor to change the
power adaptor.
Caution: The temperature of defective power adaptor may be too high, user must be
careful when disconnecting from the power source.
Problem: ADSL LNK LED is not flashing.
1. If LNK LED is not flashing or blinking, check the RJ-11 cable connection between
LINE port of the modem and ADSL port of the micro-filter.
2. If LNK LED is not flashing and blinking, it means that there’s no ADSL signal to the
AHT-E300 ADSL Router. In this case contact your service provider if there’s problem in
their service network or not.
3. If LNK LED is just blinking and not flashing, it means that there’s an ADSL signal. But
because there may be a lot of noise, AHT-E300 ADSL Router cannot connect to the
DSLAM (DSL Access Multiplexer) in the CO (Central Office). In this case contact to
your service provider if there’s problem in their service network or not.
4. If LNK LED is flashing just a while and blinking some while, it means that there’s some
noise fluctuation. When there’s low noise in the ADSL line, AHT-E300 ADSL Router
sync with DSLAM in the CO. But when some noise fluctuation has occurred, AHT-
E300 ADSL Router drops the synchronization with DSLAM to get enough noise
margins. In this case contact to your service provider if there’s problem in their service
network or not.
5. If LNK LED is just blinking, check that RJ-11 cable is connected to the PHONE port of
the modem or PHONE port of the micro-filter.
Solution 1
Solution 2