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