Message Possible Causes & Solutions Reference
Connection to the FTP
server cannot be
established.
• The file necessary for upgrading the firmware could not be
downloaded from the FTP server.
→ Check that the FTP server settings are correct.
Page 163
FTP download failed.
Firmware file format is
invalid.
• The firmware could not be upgraded using the firmware
upgrade file that was downloaded from the FTP server.
—
Firmware file is invalid.
The SD Card format
feature does not support
SD Cards larger than 2G
Bytes.
• The SD memory card is not compatible with the KX-NT400.
→ Use an SD memory card that is compatible with the
KX-NT400.
Page 181
The SD Card format
feature does not support
SD Cards smaller than
32M Bytes.
Failed to connect to the
LDAP server.
• The KX-NT400 could not connect to the LDAP server.
→ Check the settings for the LDAP server.
Page 121
Failed to connect to the IP
camera.
• The KX-NT400 could not connect to a network camera.
→ Check the settings for the network camera.
Page 116
Password is locked.
Please contact your
manager of PBX.
• Your extension has been locked by the PBX.
→ To unlock your extension, the PIN and PIN lock for your
extension must be cleared. For details, consult your
manager.
—
NT400 skipped refreshing
the PBX Data because
PBX was not ready.
• The KX-NT400 could not download system speed dialing
directory and extension number directory from the connected
PBX.
→ Consult your administrator.
—
Error Codes
You can view the system error messages (error codes) on the Error Log screen.
To access the Error Log screen
1. Press the Options tab > Administrator Options > Error Log.
Document Version 2010-01 Operating Instructions 193
Appendix
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