6 Replies Latest reply on Feb 16, 2012 8:59 PM by mseberg

    ORA-28040: No matching authentication protocol in version 11.2.0.3

    789546
      Hi,

      I am working on database server 11.2.0.3 and the OS is linux 86 bit. i created an entry in sqlnet.ora file with

      SQLNET.ALLOWED_LOGON_VERSION = 10

      it is failing with ORA-28040: No matching authentication protocol error and i am not able to connect as sys till I comment the entry. How do i set this entry and where in the client side do I need to set this entry? Also, do I have to set it to SQLNET.ALLOWED_LOGON_VERSION = 11 instead? I am confused. Please help

      thanks a lot.