I dont know what do you mean by authenticationc type? I Had my
freepbx installed through the fonicaproject, and everthing was working well, then after I upgraded to 2.6 from module admin, I couldn’t login with my old credentials or any credentials.
I am surprised they have not done anything about it yet, they were pointed at the issue when they first filed a bug against it thinking there was a problem in FreePBX.
The problem is their use of mod_mysql in apache to authenticate you through apache against FreePBX tables that were migrated. You can see a posting on fixing your Fonica system here: