My solution:
My hosting ( with cpanel ) changes any subdomain to a directory. Example:
myBlog.myDomain.com/
redirects to
myDomain.com/myBlog/
So the configuration value introduced automatically by the instaler was not valid. The controller sent me to a php file in a wrong directory to login.
Everything worked OK after changing the option of “siteurl” in the BBDD. Clue, the table [optional_prefix]options.
I hope it works.
