SMB/CIFS-mount not working (docker nextcloud + nginx-reverse-proxy)

I don’t get SMB/CIFS-mounts to work. I use docker-nextcloud + jwilder/nginx-proxy. I took the Dockerfile found in nextcloud-examples to build an nextcloud-image with all necessary libs.
I don’t have any idea how to debug the problem. Can it be a reverse-proy problem ? The “pure” nextcloud is working so far.


A logged in user gets the following error-message when he tries to open the mount-point:
“There was an error with message: Empty response from the server.”

Was a problem with our old netapp, which export smb/cifs only in version 1. So i needed to make an entry in the /etc/samba/smb.conf
client min protocol = NT1
client max protocol = NT1
Problem had nothing to do reverse proxy or nextcloud …