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Appendix A Troubleshooting
Network Connection
Troubleshooting
■ Checking Basic Network Operation
with a Ping Test
The network connection may be checked by performing
a ping test. For more details on how to perform a ping
test, refer to "Chapter 4 Checking the Network
Connection" (page 15).
Check the ping results, and try the following:
[Ping statistics] shows
"Lost=4 (100% loss)"
■ Details
Communication with the device that is specified as the
ping target is unavailable.
■ Action
The setting of the ping target may be invalid. Check
that the ping target IP address, host name, or FQDN
is correct.
The network transmission mode may differ from the
connection target. On the [Network Status] window,
change [Link speed / Duplex mode] from [Auto-
Negotiation] to a fixed mode. This can be changed as
follows:
1. Select [Network Settings]
Status].
The [Network Status] window appears.
2. Select a fixed link speed/duplex mode for [Link
Speed/Duplex Mode].
3. Press the [OK] button.
If there are no problems with the ping target setting
and the network transmission mode, refer to "Failure
to Connect to a Server Using Its IP Address" (page
18) for further solutions.
[Basic]
[Network
17
[Ping statistics] shows
"Lost=N (1 to 99% loss)"
■ Details
Communication with the device specified as the ping
target is unstable.
■ Action
There may be a quality problem with the LAN cable.
Replace the LAN cable and try again.
The network transmission mode may differ from the
connection target. On the [Network Status] window,
change [Link speed / Duplex mode] from [Auto-
Negotiation] to a fixed mode. This can be changed as
follows:
1. Select [Network Settings]
Status].
The [Network Status] window appears.
2. Select a fixed link speed/duplex mode for [Link
Speed/Duplex Mode].
3. Press the [OK] button.
"Hardware error"
■ Details
There may be problems in the hardware transmission
path. For example, the LAN cable may have become
disconnected during the ping test.
■ Action
Check the status of the LAN cable and try again.
"Ping request could not find host
xxxxxxxxx. Please check the name and
try again."
■ Details
The name-resolution or address-resolution for the
device specified as the ping target may have failed.
■ Action
Check that the ping target host name or FQDN is
correct.
Check that the DNS server or WINS server settings
are correct.
If the ping target host name or FQDN is correct, refer
to "Failure to Connect to a Server Using Its Host
Name or FQDN" (page 19) for further solutions.
[Basic]
[Network