Certbot: Trying to get Certbot to install new cert with HSTS

Hi,

Some background:
So, I'm using InterWorx and I'm encountering this issue where ./certbot-auto --hsts doesn't work nor does ./certbot-auto certonly --standalone after temporarily stopping httpd on CentOS 7 x64. Also note that it's not proxied. This is on a Xen VPS. I've also confirmed that telnet to port 443 works for this server, so there should be no connection issues...

IW dev/support noted that HSTS might be causing Certbot-auto to fail on helmsgate.eidolonhost.com because eidolonhost.com is preloaded via the HSTS preload list (which I've now since requested removal so I can get this issue fixed...) but I was hoping there might be some answer where I can force through a LE cert to be installed.

Relevant logs:

[root@helmsgate letsencrypt]# cat letsencrypt.log
2016-07-08 00:32:50,790:DEBUG:certbot.main:Root logging level set at 30
2016-07-08 00:32:50,791:INFO:certbot.main:Saving debug log to /var/log/letsencrypt/letsencrypt.log
2016-07-08 00:32:50,791:DEBUG:certbot.main:certbot version: 0.8.1
2016-07-08 00:32:50,791:DEBUG:certbot.main:Arguments: ['--hsts']
2016-07-08 00:32:50,791:DEBUG:certbot.main:Discovered plugins: PluginsRegistry(PluginEntryPoint#apache,PluginEntryPoint#webroot,PluginEntryPoint#null,PluginEntryPoint#manual,PluginEntryPoint#standalone)
2016-07-08 00:32:50,801:DEBUG:certbot.plugins.selection:Requested authenticator None and installer None
2016-07-08 00:32:54,292:DEBUG:certbot.plugins.selection:Multiple candidate plugins: * apache
Description: Apache Web Server - Alpha
Interfaces: IAuthenticator, IInstaller, IPlugin
Entry point: apache = certbot_apache.configurator:ApacheConfigurator
Initialized: <certbot_apache.configurator.ApacheConfigurator object at 0x1fe7750>
Prep: True

* webroot
Description: Place files in webroot directory
Interfaces: IAuthenticator, IPlugin
Entry point: webroot = certbot.plugins.webroot:Authenticator
Initialized: <certbot.plugins.webroot.Authenticator object at 0x28da690>
Prep: True

* standalone
Description: Automatically use a temporary webserver
Interfaces: IAuthenticator, IPlugin
Entry point: standalone = certbot.plugins.standalone:Authenticator
Initialized: <certbot.plugins.standalone.Authenticator object at 0x28da390>
Prep: True
2016-07-08 00:33:15,830:DEBUG:certbot.plugins.selection:Selected authenticator <certbot.plugins.standalone.Authenticator object at 0x28da390> and installer None
2016-07-08 00:33:22,034:DEBUG:root:Sending GET request to https://acme-v01.api.letsencrypt.org/directory. args: (), kwargs: {}
2016-07-08 00:33:22,038:INFO:requests.packages.urllib3.connectionpool:Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
2016-07-08 00:33:33,034:DEBUG:certbot.main:Exiting abnormally:
Traceback (most recent call last):
  File "/root/.local/share/letsencrypt/bin/letsencrypt", line 11, in <module>
    sys.exit(main())
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/certbot/main.py", line 744, in main
    return config.func(config, plugins)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/certbot/main.py", line 550, in obtain_cert
    le_client = _init_le_client(config, auth, installer)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/certbot/main.py", line 360, in _init_le_client
    acc, acme = _determine_account(config)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/certbot/main.py", line 345, in _determine_account
    config, account_storage, tos_cb=_tos_cb)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/certbot/client.py", line 118, in register
    acme = acme_from_config_key(config, key)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/certbot/client.py", line 42, in acme_from_config_key
    return acme_client.Client(config.server, key=key, net=net)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/acme/client.py", line 63, in __init__
    self.net.get(directory).json())
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/acme/client.py", line 631, in get
    self._send_request('GET', url, **kwargs), content_type=content_type)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/acme/client.py", line 613, in _send_request
    response = self.session.request(method, url, *args, **kwargs)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/requests/sessions.py", line 468, in request
    resp = self.send(prep, **send_kwargs)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/requests/sessions.py", line 576, in send
    r = adapter.send(request, **kwargs)
  File "/root/.local/share/letsencrypt/lib/python2.7/site-packages/requests/adapters.py", line 437, in send
    raise ConnectionError(e, request=request)
ConnectionError: HTTPSConnectionPool(host='acme-v01.api.letsencrypt.org', port=443): Max retries exceeded with url: /directory (Caused by NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x3303e10>: Failed to establish a new connection: [Errno -2] Name or service not known',))

Edit: Note that helmsgate.eidolonhost.com is now using a valid SSL certificate from Comodo. It'll at least allow me to get the SSL certificate replaced with Let's Encrypt in the future.

Edit2: It appears to be still persisting for a customer domain, in this case, dragonfox.net with the exact same error. The customer is using CloudFlare in this case, though so I don't know if that's relevant to the client being unable to install new SSL certs?