3Com 3C840 User Manual
Page 156
13-8
C
HAPTER
13: T
ROUBLESHOOTING
If your Network Service
is PPP, the PPP
Authentication
information may be
incorrect. Check
connection event log
(Monitor > Events >
Connection Event Log)
to see if the PPP
connection could not
be established due to a
PAP or CHAP
mismatch.
Enter the appropriate PPP
Username and Password in the
remote site profile.
Remote network is
not responding (e.g.
to PINGs or the Web
browser connection
requests.)
Remote location may
be off-line.
The machine you are trying to
connect to may not be running or
may be busy processing other
requests. Try reaching another
remote machine.
The remote network
is responding inter-
mittently or not at
all. Monitor > ATM
shows ATM cell
delineation
successful but Hec
sound is high.
There is a corrupt line
causing the ATM data
cells to fail the header
error test.
Contact the service provider for
verification. A lower speed
connection may solve the problem.
The remote network
is responding inter-
mittently or not at
all. ATM cell
delineation achieved
but Monitor >
Remote Sites >
Remote Site
Counters shows that
many packets are
being received with
Bad CRC.
ATM cells are being
dropped by a device in
the path to the remote
site.
Contact your service provider.
Symptom
Possible Cause
Correction Action
840ug.book Page 8 Friday, July 7, 2000 2:23 PM