C-1
A
PPENDIX
C
T
ROUBLESHOOTING
Troubleshooting Chart
Symptom Action
Cannot connect using
Telnet, Web browser,
or SNMP software
• Be sure you have configured the agent with a valid
IP
address, subnet mask and default gateway.
• If you are trying to connect to the agent via a tagged VLAN
group, your management station must include the
appropriate tag in its transmitted frames.
• Check that you have a valid network connection to the
switch and that the port you are using has not been
disabled.
• Check network cabling between the management station
and the switch.
• If you cannot connect using Telnet, there may already be
four active sessions. Try connecting again at a later time.
Cannot access
the on-board
configuration
program via a serial
port connection
• Be sure you have set the terminal emulator program to
VT100 compatible, 8 data bits, 1 stop bit, no parity, and
9600 bps.
• Check that the null-modem serial cable conforms to the
pin-out connections provided in the Installation Guide.
Forgot or lost the
password
• Contact your distributor or SMC technical support for
assistance.
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