Appendix C: Troubleshooting; Power/Led Status Troubleshooting; Serial Console Troubleshooting; Remote Console Troubleshooting - Sena PS100 User Manual

Appendix C: Troubleshooting

C.1 Power/LED status troubleshooting
Problem Cause
Power LED does Power cable is not
not light up connected
Link LED does not Ethernet cable is not
light up connected
Invalid Ethernet cable is
used
ACT LED does not Invalid IP configuration
blink
C.2 Serial console troubleshooting
Problem Cause
Serial console is not Invalid serial cable
connected
Invalid serial port
configuration of terminal
emulation program
Serial console is IP mode is DHCP or
halted for few PPPoE, but IP is not
seconds periodically assigned
Cannot login to Invalid username and/or
console password
C.3 Remote console troubleshooting
Problem Cause
Cannot connect to The HelloDevice Pro
the HelloDevice Pro Series is not assigned
Series using telnet valid IP address
The HelloDevice Pro
Series is configured to
reject IP address of the
PC
Action
Check power connection
Check Ethernet cable connection
There are two types of Ethernet cables: Straight-through cable
and crossover cable. If you are using an Ethernet hub, use
straight-through cable. If direct connection between the
HelloDevice Pro Series and remote host is used, use crossover
cable instead.
Check IP configuration parameters
Action
Be sure to use a serial console cable (null-modem cable) for
serial console
Check serial port configuration of terminal emulation program:
9600 bps, 8 Data bits, No parity, 1 stop bit, Hardware flow
control
If IP mode is set to DHCP or PPPoE but IP is not actually
assigned because of DHCP server or PPPoE server failure,
serial console is halted for few seconds at every 20 seconds.
Change IP mode to the static IP mode
Use valid username and password. If username and/or
password are lost, perform factory default reset using factory
reset switch. Factory default value of username and password
are both admin
Action
Use serial console to assign valid IP address to the HelloDevice
Pro Series
Change the remote host access control parameter using serial
console to allow the IP address of the PC
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