Cant resolve hostname for XXX unknown error

[Mimoto-creator]

I have troubles with docker and netshare. I'm using Portainer, and I want mount a cifs volume into a docker container. But if I do that I get a error message. Mount error: could resolve address for that share.

I can mount a cifs share manually with the mount command. But I cannot mount it into a container through Portainer.

I hope anyone can help me.

I'm using Ubuntu Server 20.04. And using the newest versions of all applications.