On some occasions there may be a network block which will not allow you to configure your player and that is why it is necessary to validate the existence of this block in some way. For this, it is necessary to access the web page https://httpstatus.io/ and once you have accessed there, enter the URL and click on 
.
For example, to test that there is no blockage when accessing the URL of my 4YouSee Manager account called avaliacao25.4yousee.com.br, I run the test and I will get the following:
If the number 200 appears within the "Status codes" then there is no network block to access the manager account avaliacao25.4yousee.com.br.
Try this step with the URL of your 4YouSee Manager account.
In addition to the URL of your Manager account, we recommend checking that the following URLs are not blocked:
- https://s3.amazonaws.com
HTTP://PYPI.PYTHON.ORG/ (ONLY FOR WINDOWS AND LINUX)
- http://files.pythonhosted.org/ (Only for Windows and Linux)
- https://clients3.google.com/generate_204 (Android only)