"Network
communication has
failed. The IP
address may be
invalid. Please
check the network
settings."
[13-25]
The settings in [SIP
Server IP Address]
and [Effective
Protocol] do not
match.
Check that SIP Server IP Address in
[Settings] [Fax Settings] [Detailed
Initial Settings] [IP-Fax Settings]
[SIP Settings] and [Effective Protocol] on
[Settings] [System Settings]
[Network/Interface] are correct.
An invalid IP
address is
registered.
Specify the correct [Effective Protocol]
and [IP Address (IPv4)], or [IP Address
(IPv6)] on [Settings] [System Settings]
[Network/Interface].
See "Connecting to a Wired LAN", User
Guide (HTML).
"Network
communication has
failed. The line has
been disconnected.
Please check the
destination and
caller ID
notification
setting."
[13-32]
The destination
terminated the
communication.
• Check that the destination is
specified correctly.
• If the destination refuses to receive a
fax with no sender information,
enable notifying of the information
and send the fax again.
"Network
communication has
failed. The mail
address for
authentication does
not match with
administrator's one.
Please check the
settings."
[14-20]
When a signature is
specified, the SMTP
authentication e-
mail address or
POP before SMTP
authentication e-
mail address does
not match the
administrator e-
mail address.
Check that the authentication e-mail
address matches the address specified in
[Settings] [System Settings] [Send
(Email/Folder)] [Email]
[Administrator's Email Address].
See "Send (Email/Folder)", User Guide
(HTML).
• Change the current value to [1] under switch number [21] and bit number [6] in
[Settings] [Fax Settings] [Detailed Initial Settings] [Parameter Setting]
[Parameter Setting] to disable displaying the "Network communication has failed."
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