Issue Possible Cause & Solution
Some of the keys on the USB
keyboard do not work.
The locale of the keyboard is different from the locale selected for the
unit.
When you specify a locale for the unit in the [Language &
keyboard] settings (Page 113), the USB keyboard type is set to
the same locale. Therefore, if you use a keyboard designed for a
different locale from the one specified, the character that appears
on the screen when you press a key may differ from the character
printed on the keyboard. (For example, if the locale is "French" but
you use a US keyboard, pressing the [Q] key causes an "A" to
appear on the screen.)
You are using a key that is not supported by this unit.
Confirm which keys are supported (Page 27).

Function Settings

Issue Possible Cause & Solution
I cannot configure settings.
You are on a call.
When you finish the call, try configuring the settings again.
You moved to another screen while configuring settings.
If you move to another screen while making changes, those
changes may not be saved. Configure the settings again as
necessary.

Error Messages

Issue Possible Cause & Solution
Network error
Address conflict. The network settings are incorrect.
Consult your administrator or dealer.
Network error
Invalid IP address.
Network error
Please check the LAN
cable.
The Ethernet cable is not connected correctly.
Check whether the Ethernet cable is connected correctly to the unit
(Page 97). If it is not connected correctly, disconnect it, and then
connect it again.
The clock is not adjusted
because an NTP server is
not specified.
An NTP server is not specified.
Tap [Enter NTP], and then configure the NTP server settings
(Page 116). Consult your administrator or dealer for details about
the settings for an NTP server.
128 Operating Instructions Document Version 2011-09
Troubleshooting