Unable to access Windows SMB shared folder with IP addressing

Using the Task Scheduler,
Batch C# to a Shared Folder in
When accessing from Windows Server 2012, authentication fails with IP addressing and authentication succeeds with hostname specification.
Tasks are configured to run regardless of the login state of the task invoking user.
IP addressing, \\XXX.XXX.XXX.XXX\Shared Folder Path
hostname,\\serverName\shared folder path

In addition, the authentication information is set to Windows credentials so that it does not have to be programmed.
The Windows credentials are as follows:

For kerberos authentication, I also looked at articles that fail authentication with IP addressing, but I don't feel comfortable.

Reference Page:

• I would like to browse the shared folder files on the server in my local system account
• When you connect to an SMB share using an IP address, Kerberos is not available

If anyone knows the cause, please advise.
Thank you for your cooperation.