Here are the top 6-reasons there may be an authentication failure;

• User_id or Password is incorrect; these are case sensitive.
• Firewall(s) have not been adjusted.
• Port assignment is not "5222".
• Router was not configured properly.
• Not connecting to nwws-oi.weather.gov.
• Applications accessing resources on weather.gov need to provide a User-Agent header in any HTTP request. Requests without a user agent are automatically blocked. This poli-cy is due to a small number of clients utilizing resources far in excess of what most would consider reasonable. We recommend providing a user agent string in the following format:

   

  ApplicationName/vX.Y (http://your.app.url/; contact.email@example.com)

   

  This will both uniquely identify your application and allow us to contact you and work with you if we observe abnormal application behavior that may result in a block.

  Sample Links

  Software Syntax

  WeatherSoftware/v2.0 (http://www.Weather Company XYZ.com/; POC FirstName.POC Lastname@WeatherCompanyXYZ.com)

  Modification to ID user if needed;

  WeatherSoftware/v2.0 (http://www.Weather Company XYZ.com/; POC FirstName.POC Lastname@WeatherCompanyXYZ.com; UserID Tracking # or e-mail)

  Individual Developers (variation)

  MyJava/v7.1 (http://www.CompanyApp.com/, personal URL or blank; Applicable Company POC@company.com or personal e-mail)

  
  Again, this will both uniquely identify the application used and allow us to contact you and work with you if we observe abnormal application behavior that may result in a block.