Error getting "ARIALUNI.7z"

[Dan64 30]

My MB3 Server [Version 3.0.5070.20258]

 

Fail to get the file "ARIALUNI.7z". The error log is the following

2013-11-23 13:48:14.7396, Info, Main, Media Browser Server started
2013-11-23 13:48:14.8021, Info, Main, Command line: C:\Users\MediaCenter\AppData\Roaming\MediaBrowser-Server\System\MediaBrowser.ServerApplication.exe
2013-11-23 13:48:14.8021, Info, Main, Server: MCE2013
2013-11-23 13:48:14.8021, Info, Main, Operating system: Microsoft Windows NT 6.2.9200.0
2013-11-23 13:48:14.8177, Info, Main, Program data path: C:\Users\MediaCenter\AppData\Roaming\MediaBrowser-Server
2013-11-23 13:48:14.8177, Info, Main, Executable: C:\Users\MediaCenter\AppData\Roaming\MediaBrowser-Server\System\MediaBrowser.ServerApplication.exe
2013-11-23 13:48:16.9452, Info, App, Loading CoverArt, Version=4.0.3.4, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9452, Info, App, Loading ServerRestart, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9452, Info, App, Loading MediaBrowser.Api, Version=3.0.5070.20255, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9452, Info, App, Loading MediaBrowser.WebDashboard, Version=3.0.5070.20256, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9452, Info, App, Loading MediaBrowser.Model, Version=3.0.5070.20254, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9452, Info, App, Loading MediaBrowser.Common, Version=3.0.5070.20255, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9452, Info, App, Loading MediaBrowser.Controller, Version=3.0.5070.20255, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9572, Info, App, Loading MediaBrowser.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9572, Info, App, Loading MediaBrowser.Common.Implementations, Version=3.0.5070.20255, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9572, Info, App, Loading MediaBrowser.Server.Implementations, Version=3.0.5070.20256, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9572, Info, App, Loading MediaBrowser.IsoMounter, Version=1.0.5025.12100, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:16.9572, Info, App, Loading MediaBrowser.ServerApplication, Version=3.0.5070.20258, Culture=neutral, PublicKeyToken=null
2013-11-23 13:48:17.2035, Info, App, Version 3.0.5070.20258 initializing
2013-11-23 13:48:45.4316, Info, App, HttpClientManager.GetTempFile url: https://www.dropbox.com/s/pj847twf7riq0j7/ARIALUNI.7z?dl=1, temp file: C:\Users\MediaCenter\AppData\Roaming\MediaBrowser-Server\cache\temp\e41744f0-8943-4b26-b834-243277156c71.tmp
2013-11-23 13:48:46.2134, Info, SqliteUserRepository, Opening C:\Users\MediaCenter\AppData\Roaming\MediaBrowser-Server\data\users.db
2013-11-23 13:48:47.2050, Error, App, Error getting response from https://www.dropbox.com/s/pj847twf7riq0j7/ARIALUNI.7z?dl=1
	An error occurred while sending the request.
	System.Net.Http.HttpRequestException
	   in System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
	   in System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
	   in System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
	   in MediaBrowser.Common.Implementations.HttpClientManager.HttpClientManager.<GetTempFileResponse>d__28.MoveNext()
	InnerException: System.Net.WebException
	Connessione sottostante chiusa: Impossibile stabilire una relazione di trust per il canale sicuro SSL/TLS..
	   in System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
	   in System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
	InnerException: System.Security.Authentication.AuthenticationException
	Il certificato remoto non è stato ritenuto valido dalla procedura di convalida.
	   in System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
	   in System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
	   in System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
	
2013-11-23 13:48:47.2090, Error, App, Failed to download ffmpeg font file from https://www.dropbox.com/s/pj847twf7riq0j7/ARIALUNI.7z?dl=1
	An error occurred while sending the request.
	MediaBrowser.Model.Net.HttpException
	   in MediaBrowser.Common.Implementations.HttpClientManager.HttpClientManager.<GetTempFileResponse>d__28.MoveNext()
	--- Fine traccia dello stack da posizione precedente dove è stata generata l'eccezione ---
	   in System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
	   in System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
	   in MediaBrowser.Common.Implementations.HttpClientManager.HttpClientManager.<GetTempFile>d__23.MoveNext()
	--- Fine traccia dello stack da posizione precedente dove è stata generata l'eccezione ---
	   in System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
	   in System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
	   in MediaBrowser.ServerApplication.FFMpeg.FFMpegDownloader.<DownloadFontFile>d__17.MoveNext()
	InnerException: System.Net.Http.HttpRequestException
	An error occurred while sending the request.
	   in System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
	   in System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
	   in System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
	   in MediaBrowser.Common.Implementations.HttpClientManager.HttpClientManager.<GetTempFileResponse>d__28.MoveNext()
	InnerException: System.Net.WebException
	Connessione sottostante chiusa: Impossibile stabilire una relazione di trust per il canale sicuro SSL/TLS..
	   in System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
	   in System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
	InnerException: System.Security.Authentication.AuthenticationException
	Il certificato remoto non è stato ritenuto valido dalla procedura di convalida.
	   in System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
	   in System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
	   in System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)

I'm able to download the file using a Browser (Mozilla Firefox). The Server is running on Windows 8.0.

 

I think that the problem is related to the validation of the certificates, since you are using the protocol https to download it.