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B-1
A
PPENDIX
B
T
ROUBLESHOOTING
Table B-1 Troubleshooting Chart
Symptom Action
Cannot connect using
Telnet, Web browser,
or SNMP software
• Ensure that 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 the IP address
for 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 or SSH, you may have
exceeded the maximum number of concurrent Telnet/SSH
sessions permitted. Try connecting again at a later time.
Cannot access
the on-board
configuration
program via a serial
port connection
• Ensure that you have set the terminal emulator program to
VT100 compatible, 8 data bits, 1 stop bit, no parity, and set
the baud rate to any of the following (9600, 19200, 38400,
57600, 115200 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 SMC Technical Support for help.