50
Someone is using serial
console
Exit serial console and retry telnet connection
Cannot login to
console
Invalid username and/or
password
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
C.4 IP Address Troubleshooting
Problem
Cause
Action
Use serial console to find IP address
Cannot find IP
address of the
NEMO10
Use HelloDeviceManager program to probe the NEMO10 on
the network
The NEMO10 is not
assigned valid IP
address
Use serial console to assign valid IP address to the NEMO10
HelloDeviceManager
cannot probe the
NEMO10
HelloDeviceManager
and the NEMO10 are not
on the same subnet
Run HelloDeviceManager on the PC that is on the same subnet
with the NEMO10
C.5 DHCP Troubleshooting
Problem
Cause
Action
Cannot lease IP
address
DHCP server is not
working
Check if DHCP server is working correctly
IP address of the
NEMO10 is changed
DHCP server does not
extend lease time
Check if DHCP server is working correctly
C.6 TCP Server Mode Operation Troubleshooting
Problem
Cause
Action
IP configuration of
remote host is invalid
Check if IP configuration of the remote host is valid
Host mode of the
NEMO10 serial port is
not TCP server
Change the host mode of the NEMO10 serial port to TCP server
or TCP server/client
IP address of the
NEMO10 or TCP port
number is wrong
Specify valid IP address and TCP port number of the NEMO10
DSR option is set but
DSR input is not high
Disable DSR option or make DSR input of the NEMO10 high
Cannot connect to
the NEMO10
TCP connection with
the other host is
established already
Close established TCP connection or connect later
