NextCloud & SMB Shares auf UCS Member Server

Hi all,

I try to add some “external Storage” to my Nextcloud system.
The share is located on a UCS Member server. I can easily access the shares via Windows.
But when I add them to the Nextcloud I only get a red sign.
I’m running 1 DC with a Windows compatible Samba domain, freshly installed and 2 Member Server one is my data Server and the second on runs as Nextcloud server.
The nextcloud.log is empty.

Any thoughts Ideas?
Thanks for your support

What does your config of the external storage looks like and what are the reported issues (check log)?