Message Cause Solution and reference
"The device's
authentication service
cannot be performed."
Authentication cannot
be performed because
the authentication
service is starting up or
busy.
• When User Code or Basic authentication
is specified, wait a while until processing
the machine address is completed.
• When Windows or LDAP authentication is
specified, wait a while until the server
becomes ready for processing. If
authentication is not possible even after
waiting for a while, consult your
administrator.
"There is no response
from the scanner. There
may be a number of
reasons for this, e.g. the
data between the
computer and scanner
has been lost because of
an increase in network
traffic, the firewall in the
virus protection software
may be activated, or
there might be problems
with the hardware etc. If
you can not fix this
problem, please call
service."
The network is busy. Wait a while.
The firewall function is
enabled on the
computer.
Configure the firewall function of the computer
to allow communication of the application
used, or disable the firewall function.
The machine or the
computer is not
connected to the
network correctly.
Check that the machine or the computer is
connected to the network correctly.
"User Authentication in
SNMPv3 connection has
failed."
The authentication
information is registered
incorrectly in Network
Connection Tool when
SNMPv3 encrypted
communication is
enabled on the
machine.
Register the SNMPv3 authentication
information in Network Connection Tool that is
installed on the computer with the TWAIN
driver. For the SNMPv3 authentication
information, consult your network
administrator.
See "Installing the TWAIN Driver", User Guide
(Full Version).
10. Troubleshooting
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