Problem Cause and SolutionI cannot log in to the deviceapplication screen.• The characters displayed in the image were not entered correctly.→ Check that the capitalization of characters is correct, and then tryentering them again.→ Check that you have not entered any unused characters, and then tryentering them again. The following characters are not used.– Uppercase letters: I O– Lowercase letters: c i j l o s u v w x zIf These Messages AppearMessage Cause and SolutionInvalid Activation Keyentered.• The Activation Key No. or the Registration ID you entered is incorrect.→ Check the information written on the activation key to ensure it isentered correctly.Activation Key alreadyregistered.• The Activation Key No. and Registration ID you entered is already inuse by another HD Visual Communication Unit.• You entered an Activation Key No. and Registration ID that have beenused for registration in the past.→ Enter the information written on an activation key that has not beenused yet. If the message still appears, contact your dealer.This Trial licence alreadyregistered.• You are trying to use a different activation key after completingregistration using the included activation key.→ Do not use an activation key other than the one included with theproduct.KX-VC Series NAT Traversal Service for this DeviceProblem Cause and SolutionI registered a RegistrationKey, but I cannot make avideo conference call usingKX-VC Series NAT TraversalService.• The connection mode is not set to "NAT Traversal Mode".→ Set the connection mode to "NAT Traversal Mode" (Page 122).After registering aRegistration Key andrestarting the unit, theTerminal ID is not displayed inthe upper right of the Homescreen even after 5 minutes.• The LAN cable is not connected correctly.→ Check that it is connected to the unit properly.• Router settings for your Internet connection are incorrect.→ Set your router correctly, following the router’s documentation, and inaccordance with setting information supplied by your Internet provider.• Packet filtering or port forwarding is enabled on the router.→ Disable these features on the router. For details, refer to your router’sdocumentation.186 User Manual Document Version 2015-08Additional Information
