Patching Wizard config

Hello Team,

We are trying to configure patch wizard utility so that we can perform patch impact analysis before we apply patch on environment.

While doing the setups, it is asking for metalink user id and password. Even though we are passing credential correctly, it is giving us error message.

Back-end trace shows, it is directing to updates.oracle.com. However we have downloaded patch in staging area and given that path in configuration. Is it step mandatory even though we have downloaded the patch in staging area.

Please let me know if you have any clue behind this issue.