M12 did not save at the File Server NSA 320

There is an Error "mount server failed (exitcode 28160).
But the connection tested from the camera to the file server is ok.
The camera is the time code server of the file server. This also function.
What could be the problem?

Gateway definition or Standard Route in the camera has no effect to the problem.

Pourquoi le protocole NFS ?

because of the File Server - so NFS

with SMB to my PC ( it works, but I do not want to use my PC for this. Therefore I have a File Server.

Ok, now I have use the SMB with the file server and it works also. So the problem is solved. I have thougth this did not work for file server.
Thanks for help.