Appendix D Network Connection Troubleshooting
■Checking Basic Network Operation with a Ping Test

If a network connection is not possible, refer to "3.9 Checking the Network Connection" (page 11) for ping results and how to deal with them.

Result

Connection

Server name

 

 

Action

status

setting

 

 

 

 

 

 

"Ping statistics" shows

OK

IP address / host

None

 

"Lost=0 (0% loss)"

 

name / FQDN

 

 

 

 

 

 

 

"Ping statistics" shows

NG

IP address / host

Check that the ping target IP address, host name, or

"Lost=4 (100% loss)"

 

name / FQDN

FQDN is correct.

 

 

 

 

address is correct, refer to "Fail-

IP Address

If the ping target IP

 

 

 

ure to Connect to a Server using its IP Address" (page

 

 

 

24) for further solutions.

 

 

 

 

 

 

Host name /

On the "Network Status" screen, change [Link speed /

 

iation" to a

fixedFQDNmode.

Duplex mode] from "Auto-Negot

 

 

 

This can be changed as follows:

 

 

 

1.

Select the [Network Settings] tab on the top menu.

 

 

 

2.

Press the [

] button on the left side menu.

 

 

 

3.

Select the [Network Status] tab on the left side menu.

 

 

 

4.

On the "Network Status" screen, select [Link Speed/

 

 

 

 

Duplex Mode].

 

 

 

5.

Press the [OK] button.

 

 

 

 

"Ping statistics" shows

NG

IP address / host

There may be a problem with the quality of the LAN

"Lost=N (1 to 99%

 

name / FQDN

cable. Replace the LAN cable and try again.

loss)"

 

 

 

 

 

 

IP address / host

On the "Network Status" screen, change [Link speed /

 

 

 

iation" to a

fixednamemode/ FQDN.

Duplex mode] from "Auto-Negot

 

 

 

This can be changed as follows:

 

 

 

1.

Select the [Network Settings] tab on the top menu.

 

 

 

2.

Press the [

] button on the left side menu.

 

 

 

3.

Select the [Network Status] tab on the left side menu.

 

 

 

4.

On the "Network Status" screen, select [Link Speed/

 

 

 

 

Duplex Mode].

 

 

 

5.

Press the [OK] button.

 

 

 

 

"Hardware error"

NG

IP address / host

The LAN cable may have become disconnected dur-

 

 

name / FQDN

ing the Ping test. Check the status of the LAN cable

 

 

 

and try again.

 

 

 

 

 

"Ping request could

NG

Host name /

Check that the ping target host name or FQDN is cor-

not find host

 

FQDN

rect.

 

 

xxxxxxxxx. Please

 

 

 

 

 

 

 

Check that the DNS server or WINS server settings

check the name and

 

 

 

 

are correct.

 

try again."

 

 

 

 

 

 

 

 

 

 

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 25) for further solutions.

 

 

 

 

 

 

OK: Connection is operating normally. NG: Connection is faulty.

23

fi-6010N Network Scanner Getting Started

■Failure to Connect to a Server using its IP Address

If a server cannot be connected to by using its IP address, and does not respond to a ping test, try the following steps:

No.

Problem

 

Action

 

 

 

1

Connection error between a server and the

Check that the LAN cable has been attached to both the scanner

 

scanner, or problem with the LAN cable.

and server correctly.

 

 

If the server is connected using a LAN cable (straight type), in

 

 

case auto-mdi (automatic selection) is not supported, a LAN

 

 

cable (crossover type), switch, or router is required between the

 

 

scanner and server.

 

 

If this is not the case, the LAN cable may be faulty. Find a

 

 

LAN cable that functions normally and try again.

 

 

 

2

IP address or subnet mask is invalid.

On the "IP Address" screen, check that the IP address or subnet

 

 

mask settings are correct.

 

 

For more details about the "IP Address" screen, refer to "3.5

 

 

Setting the IP Address/DHCP" (page 8).

 

 

 

3

When using DHCP, the DHCP server does

Check the DHCP server connection status and the details of the

 

not operate normally, or there is a problem

server settings.

 

with the DHCP server settings.

If using DHCP, on the "Network Status" screen, check that IP

 

address, subnet mask, and default gateway settings are all cor-

 

 

 

 

rect.

 

 

 

If these settings are not correct, the DHCP server may not oper-

 

 

ate normally, or the DHCP server may not assign valid IP

 

 

addresses because of restricted number of leases or MAC

 

 

address validation.

 

 

If the DHCP server operating environment is changed, restart

 

 

the scanner.

 

 

The "Network Status" screen can be displayed as follows:

 

 

1.

Select the [Network Settings] tab on the top menu.

 

 

2.

Press the [ ] button on the left side menu.

 

 

3.

Select the [Network Status] tab on the left side menu.

 

 

 

4

Another host or communication device is

If the same IP address has already been used by another host or

 

connected using the same IP address as

communication device, then even if the other device has been

 

the scanner.

given a different IP address the server may not recognize the

 

 

scanner’s "duplicate" IP address until it is rebooted. Restart the

 

 

server.

 

 

If a duplicate IP address connection from another host or com-

 

 

munication device exists on a LAN, both it will be unusable.

 

 

If a duplicate IP address connection from another host or com-

 

 

munication device exists, pull out its LAN cable and restart the

 

 

server.

 

 

 

5

Access is denied due to the establishment

If a firewall has been established between the server and the

 

of a firewall between the server and the

scanner, check that it has not been set to deny access to the net-

 

scanner.

work.

 

 

 

 

24