Ubuntu backup fails in automatic mode seems to backup in manual

[Cliffm]

Hello
I have Ubuntu 11.10 installed and started using Backup to Ubuntu Cloud.
It was working on a daily bases. Then started failing. It will backup manually.
Is this a program problem or due to my machine?
Any suggestions on how to correct this problem greatly appreciated
Thanks Cliff

This is the failure notice.

Failed with an unknown error.

Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1359, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1342, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1218, in main
    sync_archive(decrypt)
  File "/usr/bin/duplicity", line 992, in sync_archive
    remlist = globals.backend.list()
  File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line 319, in iterate
    return fn(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/duplicity/backends/u1backend.py", line 214, in list
    answer = auth.request(remote_full)
  File "/usr/lib/python2.7/dist-packages/ubuntuone-couch/ubuntuone/couch/auth.py", line 147, in request
    url, method=http_method, headers=headers, body=request_body)
  File "/usr/lib/python2.7/dist-packages/httplib2/__init__.py", line 1436, in request
    (response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
  File "/usr/lib/python2.7/dist-packages/httplib2/__init__.py", line 1188, in _request
    (response, content) = self._conn_request(conn, request_uri, method, body, headers)
  File "/usr/lib/python2.7/dist-packages/httplib2/__init__.py", line 1158, in _conn_request
    response = conn.getresponse()
  File "/usr/lib/python2.7/httplib.py", line 1027, in getresponse
    response.begin()
  File "/usr/lib/python2.7/httplib.py", line 407, in begin
    version, status, reason = self._read_status()
  File "/usr/lib/python2.7/httplib.py", line 365, in _read_status
    line = self.fp.readline()
  File "/usr/lib/python2.7/socket.py", line 430, in readline
    data = recv(1)
  File "/usr/lib/python2.7/ssl.py", line 232, in recv
    return self.read(buflen)
  File "/usr/lib/python2.7/ssl.py", line 151, in read
    return self._sslobj.read(len)
SSLError: The read operation timed out