Unfortunately, there is likely to be many problems for this topic!
I have already read some threads, but none really applies to my problem!
Following problem I have!
The login in the frontend sparks. no longer on the Community Builder LoginModule!
Property already the orig. Joomla tried the same effect!
Here's what happens (or not):
The credentials can be eingegben normal as soon as you click on Log In, a list of users CB appears. And the login is not done!
The site seems to work otherwise! Only the pages where the credentials needed not because you were not logged in.
In the back end, however, the Login for me as an admin, and my test users is possible!
Occurred the problem of me nothing is nothing to you overnight!
The day before, yet we went, the next day the problem was there!
I had earlier the problem even with this page, however, another SQL database!
Here I have created the new database, so I thought before it is due to the SQL that I have inherited from Joomla 2.5.