How can I know what's the problem about connections

Nobody has claimed this yet.

## While I try to create an event at start using pyexchange:

AttributeError Traceback (most recent call last)
in ()
31
32 # Connect to Exchange and create the event
---> 33 event.create()

/usr/local/lib/python2.7/dist-packages/pyexchange/exchange2010/**init**.pyc in create(self)
260 body = soap_request.new_event(self)
261
--> 262 response_xml = self.service.send(body)
263 self._id, self._change_key = self._parse_id_and_change_key_from_response(response_xml)
264

/usr/local/lib/python2.7/dist-packages/pyexchange/base/soap.pyc in send(self, xml, headers, retries, timeout, encoding)
32 request_xml = self._wrap_soap_xml_request(xml)
33 log.info(etree.tostring(request_xml, encoding=encoding, pretty_print=True))
---> 34 response = self._send_soap_request(request_xml, headers=headers, retries=retries, timeout=timeout, encoding=encoding)
35 return self._parse(response, encoding=encoding)
36

/usr/local/lib/python2.7/dist-packages/pyexchange/exchange2010/**init**.pyc in _send_soap_request(self, body, headers, retries, timeout, encoding)
42 "Content-type": "text/xml; charset=%s " % encoding
43 }
---> 44 return super(Exchange2010Service, self)._send_soap_request(body, headers=headers, retries=retries, timeout=timeout, encoding=encoding)
45
46 def _check_for_errors(self, xml_tree):

/usr/local/lib/python2.7/dist-packages/pyexchange/base/soap.pyc in _send_soap_request(self, xml, headers, retries, timeout, encoding)
63 body = etree.tostring(xml, encoding=encoding)
64
---> 65 response = self.connection.send(body, headers, retries, timeout)
66 return response
67

/usr/local/lib/python2.7/dist-packages/pyexchange/connection.pyc in send(self, body, headers, retries, timeout, encoding)
65 response.raise_for_status()
66 except requests.exceptions.RequestException as err:
---> 67 log.debug(err.response.content)
68 raise FailedExchangeException(u'Unable to connect to Exchange: %s' % err)
69

AttributeError: 'NoneType' object has no attribute 'content'

It connect to company's exchange server and Lightning is working. So I wondering how can I trouble shooting about the connections?

Start with the traceback in pyexchange/connection.py, especially send(), then follow the call through base/soap.py and the Exchange2010 service. Reproduce event.create() against the Exchange server and determine what connection failure leads to the NoneType error; done should make that failure diagnosable rather than masking it.

Written by the indexing model from the issue text.