Lantronix 900-422 12: Troubleshooting and Technical Support

XPress DR+ User Guide 73
12: Troubleshooting and Technical Support
This chapter discusses how you can diagnose and fix errors quickly without having to
contact a dealer or Lantronix. It helps to connect a terminal to the serial port while
diagnosing an error to view summary messages that may display. When troubleshooting,
always ensure that the physical connections (power cable, network cable, and serial
cable) are secure.
Note: Some unexplained errors might be caused by duplicate IP addresses on the
network. Make sure that your unit's IP address is unique.
When troubleshooting the following problems, make sure that the unit is powered up.
Confirm that you are using a good network connection.
Problems and Error Messages
Note: For information about diagnostic LEDs, see page 22.
Table 12-1. Problems and Error Messages
Problem/Message Reason Solution
When you issue the ARP –S
command in Windows, the "ARP
entry addition failed: 5" message
displays.
Your currently logged-in
user does not have the
correct rights to use this
command on this PC.
Have someone from your IT
department log you in with
sufficient rights.
When you attempt to assign an IP
address to the unit by the ARP
method, the "Press Enter to go
into Setup Mode" error
"(described below) message
displays. Now when you Telnet to
the device server, the connection
fails.
When you Telnet to port 1
on the device server, you
are only assigning a
temporary IP address.
When you Telnet into port
9999 and do not press
Enter quickly, the device
server reboots, causing it
to lose the IP address.
Telnet back to port 1. Wait for it
to fail, then Telnet to port 9999
again. Make sure you press
Enter quickly.
When you Telnet to port 9999, the
"Press Enter to go into Setup
Mode" message displays.
However, nothing happens when
you press Enter, or your
connection closes.
You did not press Enter
quickly enough. You only
have 5 seconds to press
Enter before the
connection closes.
Telnet to port 9999 again, but
press Enter as soon as you see
the "Press Enter to go into
Setup Mode" message.