Hi Dani, Juan,
We have a Moodle 2.9.3 (Build: 20151109) environment and all external services related to Moodle Mobile are properly enabled. However, when we tried to access from the app we can not login and the error "A necessary parameter (username) missing" is shown.
We know that the app does not support the HTTPS redirects. We have analyzed and ruled out a redirection of this type at the server level. However, we have checked out the "htaccess" file and we believe that the line on the HTTPS redirection, even being commented, it seems that is still running because we still observe a redirect to https that should not be:
On #RewriteEngine
#RewriteCond% {HTTPS} off
#RewriteRule (. *) Https: //% {}% {REQUEST_URI HTTP_HOST} [R, L]
On #RewriteEngine
#RewriteCond% {HTTPS} off
#RewriteRule (. *) Https: //% {SERVER_NAME} /% $ 1 [R, L]
Moreover, we have modified the file, putting the RewriteEngine to Off, but it seems that still does not work.
On the other hand, we have restarted the Apache service but I have just tried to log in with the official app and the same error occurs.
We do not understand what may be happening. Any idea?
Thank you very much for your collaboration.
RD