We cannot change the admin password, what could be the reason?

Question

Database

Our project is written in Symfony2. They wanted to change the admin password, it is impossible through the admin panel. Not found in the code itself. We found it in the database, change it to the right one, go in - it won't let me. Change back to the old all the rules.
What could be the reason? Maybe somewhere all the same it is duplicated in the code?

Answer 1

enter the old one into the user and check the password hashes
also check if you are working with the same database (master / slave can be, etc.)

Answer 2

If the password in the database is not in cleartext, but a hash, then it is most likely salted (password salt).

Answer 3

What is there to change then?