No user authentication for SMB shares with Dolphin

Hello, I am new to Cachyos.

So far I have no problems and everything is going great.

Unfortunately I can’t connect to SMB shares with user authentication using Dolphin. Dolphin only establishes a guest connection, with which I cannot change any data on my server. My server (unraid) is configured for SMB2/SMB3 and NFS.

Dolphin does not seem to support NFS. “Invalid protocol nfs”

How can I establish a connection with user authentication via Dolphin?

A connection via “smb://USERNAME:PASSWORD@SERVER” also fails.
“Dolphin does not support web pages; the web browser has been started.”

This works flawlessly via the terminal mount or fstab. Why not via Dolphin?
Does anyone have a tip for me? I am using KDE.

Thank you

I solved it myself.