How can I test from the terminal whether my linux-based system can see a Windows domain name?

I have a backup service which stores the backup files in a share directory on a Windows server , but it fails and if I look in the logs I see this error:

13:02:13 AXSDBG notice tsrv-cmdqx(Backup->server)[30043] Result::_add(514) Connection to myfileserver failed (Error NT_STATUS_BAD_NETWORK_NAME)

13:02:13 AXSDBG notice tsrv-cmdqx(Backup->server)[30043] Result::_add(514) Connection to myfileserver failed (Error NT_STATUS_BAD_NETWORK_NAME), repeated 1 times

I googled it as saw this is a SAMBA error.

If I try to connect to myfileserver and path with the provided credential from a windows system it works.

How can I check why the services doesn't sees this name?