Crystal Server doesn't seem to pass credential to SharePoint WebDAV folder?

Question

Hello,

We have Crystal Server setup to automatically deposit generated reports to a SharePoint WebDAV folder. The Crystal Server user is setup in sharepoint with the right permissions but yet, authentication fails when it tries to access the folder. We are using NTLM.

Any idea what could be causing this? Should we use Kerberos? Any help appreciated.

Thanks.