Snapshot is failing at 96% upload. Keeps reattempting a 136mB send

This from Log

2015-02-02 04:42:55: Sending file chunked. Offset: 121634816/134092552 (90%)
2015-02-02 04:42:57: Sending file chunked. Offset: 125829120/134092552 (93%)
2015-02-02 04:42:58: Sending file chunked. Offset: 130023424/134092552 (96%)
2015-02-02 04:43:00: DEBUG: putFileChunked: url_path[sandbox/sss/snapshot-1361190969-150202-044030-10ab06c9.zip?upload_id=svuDBZ30a15RJGSsF3iklg]
2015-02-02 04:43:00: Sending file chunked commit url path: sandbox/sss/snapshot-1361190969-150202-044030-10ab06c9.zip?upload_id=svuDBZ30a15RJGSsF3iklg
2015-02-02 04:43:00: Sending file chunked commit url: https://api-content.dropbox.com/1/commit_chunked_upload/sandbox/sss/snapshot-1361190969-150202-044030-10ab06c9.zip?upload_id=svuDBZ30a15RJGSsF3iklg
2015-02-02 04:43:02: DEBUG: putFileChunked: last_result

Array
(
    [httpStatus] => 200
    [body] => {"revision": 21167, "bytes": 134092552, "thumb_exists": false, "rev": "52af0df8ad0f", "modified": "Mon, 02 Feb 2015 04:40:31 +0000", "mime_type": "application/zip", "path": "/sss/snapshot-1361190969-150202-044030-10ab06c9.zip", "is_dir": false, "size": "127.9 MB", "root": "app_folder", "client_mtime": "Mon, 02 Feb 2015 04:40:31 +0000", "icon": "page_white_compressed"}
)

2015-02-02 04:43:02: Sending to Dropbox Directory:sss/
2015-02-02 04:43:02: Send file success: snapshot-1361190969-150202-044030-10ab06c9.zip
2015-02-02 04:48:10: Sending Archive: snapshot-1361190969-150202-044030-10ab06c9.zip 134.09M
2015-02-02 04:48:10: Destination: dropbox: DropBox
2015-02-02 04:48:10: Sending file chunked. Offset: 0/134092552 (0%)
2015-02-02 04:48:13: Sending file chunked. Offset: 4194304/134092552 (3%)
2015-02-02 04:48:15: Sending file chunked. Offset: 8388608/134092552 (6%)
2015-02-02 04:48:18: Sending file chunked. Offset: 12582912/134092552 (9%)
2015-02-02 04:48:21: Sending file chunked. Offset: 16777216/134092552 (12%)
2015-02-02 04:48:23: Sending file chunked. Offset: 20971520/134092552 (15%)

THis may have been happening for 2 weeks - I think this is responsible for v.hi outbound on my server.

Thanks