Lantronix 900-618 manual Troubleshooting

		12: Troubleshooting
Problem/Message	Reason	Solution
You can ping the device server,	There may be an IP	Turn the device server off and
but not Telnet to the device	address conflict on your	then issue the following
server on port 9999.	network	commands at the DOS prompt
	You are not Telneting to	of your computer:
	port 9999.	ARP -D X.X.X.X (X.X.X.X is the
	The Telnet configuration	IP of the device server).
	port (9999) is disabled	PING X.X.X.X (X.X.X.X is the
	within the device server	IP of the device server).
	security settings.	If you get a response, then
		there is a duplicate IP address
		on the network. If you do not
		get a response, use the serial
		port to verify that Telnet is not
		disabled.
The device server appears to	If you are sure that the	You can check to see whether
be set up correctly, but you are	serial port setting is	there is a socket connection to
not communicating with your	correct, then you may not	or from the device server by
device attached to the device	be connecting to the	checking the state of CPx, if
server across the network.	correct socket of the	one of the CPs has been
	device server.	configured for Serial Channel
	Another possibility is that	Status LED functionality.
		If the state of CPx is blinking
	the device server is not
	set up correctly to make	consistently, then there is a
	a good socket connection	good socket connection.
	to the network.	If the state of CPx is low, use
		the Connect Mode option C0
		for making a connection to the
		device server from the network.
		Use Connect Mode option C1
		or C5 for a connection to the
		network from the device server.
		See the full list of Connect
		Mode options in Connect Mode
When connecting to the Web-	Your computer is not	Make sure that port 30718
Manager within the device	able to connect to port	(77FEh) is not blocked with any
server, the "No Connection	30718 (77FEh) on the	router that you are using on the
With The Device Server"	device server.	network. Also, make sure that
message displays.		port 77FEh is not disabled
		within the Security settings of
		the device server.

xPico User Guide 75