Planex FMG-24K, Руководство пользователя

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1.Troubleshooting Chart
Troubleshooting Chart
Symptom Action
A A ..
T TR RO OU UB BL LE ES SH HO OO OT TIIN NG G
248
Cannot connect
using Telnet, Web
browser, or SNMP
software
Cannot access the
on-board configura-
tion program via a
serial port connec-
tion
Forgot or lost the
password
• Be sure to have configured the agent with a valid IP
address, subnet mask and default gateway.
• Be sure that your management station has manage-
ment VLAN access to the switch (default is VLAN 1).
• 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, you may have
exceeded the maximum number of concurrent
Telnet sessions permitted. Try connecting again at a
later time.
• Be sure to 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 Appendix B.
• Reinstall the switch defaults or runtime code. Make a
direct connection to the switch’s console port and
power cycle the switch. During the POST diagnos-
tics, access the firmware-download menu and select
the appropriate options. See “Upgrading Firmware
via the Serial Port” on page A-2 for more details.