Oracle DB 12c: sqlplus as sysdba causes ORA-01017
<p>Good day. If i do <code>sqlplus user/oracle@db</code> i have successfull connection with db.</p>

<p>If i do <code>sqlplus user/oracle@db as sysdba</code> i  have error ORA-01017.</p>

<p>But at the server this command executes successfully.</p>

<p>My tnsnames.ora:</p>

<pre><code>db =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.175)(PORT = 1521))
    )
    (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = orcl)
    )
  )
</code></pre>

<p>Also i can't do <code>sqlplus /@db as sysdba</code>. And after <code>sqlplus user@db as sysdba</code> i enter a password and have this error too. At the server this executes without errors. What is the problem?</p>

<p>Oracle VirtualBox with Win2008, Oracle 12c</p>