Error method post Requests in python

I'm doing a script that makes me a POST method. I follow the library documentation requests . I have to make a login; when I use the method GET no error arises. It consists of several tags with enable ( value=1 ) and disable ( value=0 ), and at the end of the form has a tag apply changes . Anyway, I have this:

import requests
from requests.auth import HTTPBasicAuth
import json


x = {
    "MbssIndexChanged":1,
    "GuestkEnable":1,
    "GuestServiceSetIdentifier":"guest",
    "commitwlanGuestNetwork":1
}

headers = {'User-Agent': 'Mozilla/5.0'}
session = requests.Session()
r = session.post(url, auth=HTTPBasicAuth('user','pass'), data=json.dumps(x))

And I get this error.

Traceback (most recent call last):
  File "/home/ubuntu/workspace/post.py", line 23, in <module>
    r = session.post(url, auth=HTTPBasicAuth(user,pass), data=json.dumps(data))
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 497, in post
    return self.request('POST', url, data=data, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 455, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 558, in
send
    raise ConnectionError(e)
requests.exceptions.ConnectionError: HTTPConnectionPool(host=url, port=8080): Max retries exceeded with url: /url (Caused by <class 'socket.error'>: [Errno 104] Connection reset by peer)'

I've tried with the retries=False , with verify=False and without the session , but without result.