I'm uploading 2Gb file and after 10 percent getting ( with cache disabled )

Jan 12 16:57:50 rnd CloudNAS: [1]Warning: WebException: for uploading /VM/rt.aes.7z The remote server returned an error: (404) Not Found. Attempt:0
Jan 12 16:57:50 rnd CloudNAS: [1]Error: WriteHandle: FileHandle=(FileMode:Open,FileAccess:Write,Handle:1) Offset=179306496 BytesWritten=0 Path=/VM/rt.aes.7z  HTTP Response caught: NotFound. Not Found

 with cache enabled:

Jan 12 10:46:57 rnd CloudNAS: [UploadConcurrent-0]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:0
Jan 12 10:47:29 rnd CloudNAS: [UploadConcurrent-0]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:1
Jan 12 10:48:00 rnd CloudNAS: [UploadConcurrent-0]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:2
Jan 12 10:48:39 rnd CloudNAS: [UploadConcurrent-1]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:0
Jan 12 10:48:49 rnd CloudNAS: [UploadConcurrent-0]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:3
Jan 12 10:49:20 rnd CloudNAS: [UploadConcurrent-0]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:4
Jan 12 10:51:25 rnd CloudNAS: [UploadConcurrent-1]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:1
Jan 12 10:51:25 rnd CloudNAS: [UploadConcurrent-0]Warning: Exception: for uploading /rt.aes.7z Write timed out. Attempt:5
Jan 12 10:51:38 rnd CloudNAS: [UploadConcurrent-1]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:2
Jan 12 10:51:38 rnd CloudNAS: [UploadConcurrent-0]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:6
Jan 12 10:51:42 rnd CloudNAS: [UploadConcurrent-1]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:3
Jan 12 10:51:42 rnd CloudNAS: [UploadConcurrent-0]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:7
Jan 12 10:51:46 rnd CloudNAS: [UploadConcurrent-1]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:4
Jan 12 10:51:46 rnd CloudNAS: [UploadConcurrent-0]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:8
Jan 12 10:51:50 rnd CloudNAS: [UploadConcurrent-1]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:5
Jan 12 10:51:50 rnd CloudNAS: [UploadConcurrent-0]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:9
Jan 12 10:51:54 rnd CloudNAS: [UploadConcurrent-0]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:10
Jan 12 10:51:54 rnd CloudNAS: [UploadConcurrent-1]Warning: WebException: for uploading /rt.aes.7z Error: ConnectFailure Attempt:6
Jan 12 10:51:54 rnd CloudNAS: [Update Service]Warning: UpdateService: Network Exception Response: -, Status: ConnectFailure
Jan 12 10:51:56 rnd CloudNAS: [Update Service]Warning: Update Service: Remote commmand 'Remote command 'Upload': sequenceNumber=13, fileId=4e303cb1-73e7-49c4-a35a-e581792c773f, status=PendingRetry, failedCount=1, lastFailed=01/12/2010 10:46:02, RemotePath='/rt.aes.7z', isDirectory=False, dataFilePath='/home/drp/cache/1-Germany/XXXXX-1/4e303cb1-73e7-49  -a35a-e581792c773f/data', storageNode=Nirvanix.RestDK.Types.StorageNode, uploadOffset=0, uploadType=Standard' retrying after 2 second wait due to Exception: