Oracle Error ORA-28181: proxy ‘string’ failed to enable one or more of the specified initial roles for client ‘string’

Oracle Error Message

ORA-28181: proxy ‘string’ failed to enable one or more of the specified initial roles for client ‘string’

Reason for the Error

Attempt to enable specified initial roles after logon resulted in failure.

Solution

Check that the initial roles are valid, granted to client, and not password protected.