WebDAV keeps asking for password

Nextcloud version : 12.0.3
Operating system and version : CentOS 7.4.1708 (Core) In combination with Windows Server 2016

Is this the first time you’ve seen this error?: It’s repetitive

Can you reliably replicate it?: Yes, when opening a file from the WebDAV share it keeps asking me for a password.

The issue you are facing:
When opening a file from the WebDAV share it keeps asking me for a password. Logging off and on results into a disconnected share. I make use of a working LDAP connection.

What I have tried already:
I have enabled basic authentication according to Microsoft’s documentation.
I created a reg key to add an AuthForwardServerList to my NextCloud link.
I have added the website to the trusted websites in IE.
Browsed the forums to find out related problems but none worked or were applicable.

The output of your Nextcloud log in Admin > Logging: No specific related log

I thank you in advance for helping me out troubleshooting.