Publication 2711P-UM001I-EN-P - December 2008 221
Troubleshoot the System Chapter 9
Ethernet Connnection
This section provides tips on how to isolate Ethernet problems.
• Check the LED indicators at the Ethernet connector. The
green LED indicates a communications link and should be ON.
The amber LED indicates data activity and should be flashing.
Verify that there is a connection to the hub?
• Check the cable connections and quality of cable. Check for
good connections and things such as quality, crimping, hub
connection, and uplink ports.
• Check the IP Address of the Built-in Ethernet Controller.
Enter Configuration mode and select Terminal
Settings>Networks and Communications>Network
Connections>Network Adapters. In PanelView Plus CE, open the
Network and Dial-up Connections control panel application
If DHCP is enabled, the device expects a valid IP address to be
acquired within a several seconds after startup. The TCP/IP
protocol automatically assigns 169.254.nnn.nnn when it fails to
acquire an IP address from the server. In general, an IP address
that begins with 169 will not support a network connection.
A bad Ethernet connection and the absence of a valid IP address
are typically reported in a Communications error message box
with the Winsock critical error 10065 - No route to host.
• Check for conflicting IP addresses. If DHCP is not enabled,
make sure the IP address you specify is not in conflict with the
address of another device on the network.
• Check the device name of the terminal. Do not allow devices
on the network with same host name. Enter Configuration mode
and select Terminal Settings>Communications and
Networks>Network Connections>Device Name. In PanelView
Plus CE, open the System control panel application
• Contact your Network Administrator to check peer or
server settings. The other side of the Ethernet connection may
also be a problem.
• Use the network utilities Ping.exe and Ipconfig.exe (CE
Terminals only)
• Check the requirements of network applications (CE
Terminals only). Network applications may have specific
requirements such as Proxy Settings for Internet Explorer and
Ethernet Configuration for ActiveSync. In PanelView Plus CE,
open the Communications control panel application.
• Check the multi-homed devices (CE terminals only).
Multi-homed (more than one Ethernet node) devices have the
same issues as those above but with more potential for
confusion and ambiguity. Keep the Network connections as
simple as possible.
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