AG2500Series Software User’s Guide
June, 2002
29
CHAPTER 5:
TROUBLESHOOTING
5.1 FAQ
Symptom
Possible Cause
Resolution
The DSL LED
blinks continu-
ously and never
stays solid on.
RJ-11 phone cable loose or
not connected properly.
Make sure the RJ-11 phone
cable is plugged into the back
panel of the unit and the other
end into the phone wall jack.
RJ-11 phone cable defective.
Replace RJ-11 phone cable.
The phone cable is wired
incorrectly.
Make sure the pair of the
phone line on which the DSL
service is activated is on the
inside wire pair of the RJ-11
phone jack.
Ethernet LAN
LED not turned
on after Ethernet
cable is connected.
Ethernet/LAN cable loose or
not connected properly.
Reconnect the Ethernet cable
into the Ethernet/LAN port.
Ethernet/LAN cable defec-
tive.
Replace the Ethernet/LAN
cable.
Incorrect cable.
The following are indicated
by no link at both ends:
• A crossover cable was
used when a straight-
through was required or
vice-versa.
• The cable is wired
incorrectly.
For the correct pinouts of
crossover or straight-through
cable, please refer to
Appen-
dix C
.
Unreachable
through Ethernet.
Your PC’s Ethernet NIC IP
address and the LAN IP
address of the unit are not in
the same subnet.
Change your PC’s Ethernet IP
address.
Ethernet cable loose or not
connected properly.
Reconnect the Ethernet cable
into the Ethernet port.
Unable to browse
the Internet
because authenti-
cation failed.
Incorrect username and pass-
word (EAP authentication
failed).
Contact your service provider
to make sure you have correct
username and password.
Incorrect MAC address
(MAC authentication failed).
Contact your service provider
to make sure your WLAN
device is assigned with an
authenticated MAC address.
Unregistered users.
Go to the registration web
page for registration or contact
your ISP.
