Wan Connection Problems - 3Com 3C840 User Manual

13-6 C 13: T
HAPTER ROUBLESHOOTING
WAN Connection
Problems
Symptom
SDSL LED is Off.
OfficeConnect Remote
840 Manager Interface
Status indicates that
interface atm:1/hdlc:1
is down.
SDSL LED is Off or
goes On briefly then
turns Off.
OfficeConnect Remote
840 Manager ATM
status cell delineation
fails and no idle cells
are being received.
Possible Causes Corrective Action
WAN (modem) cable Check that one end of the WAN
is not connected. cable is fully plugged into the wall.
Check that the other end is fully
plugged into the SDSL port in the
back of the OfficeConnect Remote
840.
WAN cable has been Replace the cable with another DSL
damaged. cable.
There is a problem at Contact your service provider.
the other end of the
SDSL connection that
causes the SDSL
negotiation to fail.
SDSL link is down. Contact your service provider.
SDSL link is down. Contact your service provider.
There is a problem at Report the problem to your service
the central office provider.
equipment (the other
end of the SDSL line)
such that no idle cells
are being transmitted
or there is a corrupt
line.