About Configuring Oracle Database to Communicate with Oracle ASM

Oracle Databases that use Oracle Automatic Storage Management (Oracle ASM) and the databases that are managed by Oracle Grid infrastructure must use Windows native authentication, which is enabled by default.

To ensure that it is, check that the sqlnet.ora file, by default located in ORACLE_HOME\network\admin, has NTS enabled. For example:

sqlnet.authentication_services=(NTS)