error/bigbluebuttonbn/view error unable join
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Causas comunes
Este mensaje de error se presenta cuando ocurre una de estas tres condiciones:
1. El servidor de BigBlueButton no está disponible.
If you have an auto hosted server, try going to the BigBlueButton server main page and see if you can join to the Demo Meeting. You should have access through a page like the one shown here: http://demo.bigbluebutton.org/
2. La URL usada en la configuración no es correcta
The URL must follow the format shown as example in the configuration page. This means that it should include the schema or protocol (http://), the domain and port (or hostname) should be valid and it should be solved from the server, and the path should end with a slash (/bigbluebutton/)
http://test-install.blindsidenetworks.com/bigbluebutton/
3. El Secreto Compartido (Shared Secret aka Security Salt) usado no es correcto
Es un error común el no usar el Secreto Compartido (Shared Secret) correcto.
You can retrieve the API paramters (API endpoint and shared secret) using the command bbb-conf --secret
You can find more references here https://code.google.com/p/bigbluebutton/wiki/API#API_Security_Model
Excepciones
Additionally you should verify that your Moodle server can communicate with the BigBlueButton server. You can do this by running this command in a terminal from your Moodle server.
wget -qO- http://test-install.blindsidenetworks.com/bigbluebutton/api
you should be able to see the XML response in the console.
<response><returncode>SUCCESS</returncode><version>0.81</version></response>