Communication Error An error occurred when attempting to download firmware

Hello,
I want to update my firmware of my Nokia phone and this error shows up. I don’t know what it means but I tried to make the update using Nokia suite with auto download and install. Does anyone have a solution for this error ? How can this be solved ?
Thank you !

Communication Error
An error occurred when attempting to download firmware information.
[SoapException]
Service specific exception:
Com.nokia.posti.server.caresuite.webservice.UnauthorizedFault
OK
