>> resolve this error even after resetting the SYS password?
You won't get this error if you use the correct password.
http://www.dba-oracle.com/t_ora_01017.htmChecklist for ORA-01017 errors:
- Check that user ID exists
- Check grants
- Check your environmental parameters ($ORACLE_SID), e.g.:
- If using external authentication (ops$) verify that os_authent_prefix=ops$ and remote_os_authent=true your initialization/spfile.
- Check tnsnames.ora to ensure the the service name points to the correct server and instance name.