I am encountering an issue with WebDAV and Microsoft Office 2010.  Here is the issue:

1. Upon opening a Microsoft Document (tested with Excel & Word), a prompt comes up.
2. I enter the Windows Credentials and click Ok
3. It disappears for a second or more and then comes up again, I enter the same credentials and click OK.
4. Then the prompt comes up again for the third time.
5. After entering the credentials for the third time, you either get this message come up saying it couldn't open the same said document or just a blank document.
6. 

This occurs with Microsoft Office 2010 in both Windows 7 & Windows 10. The same document opens successfully with MS Office 2013.

It seems as if Office 2010 is not authenticating properly.

Any ideas?