Many thanks for your help on this one.
I start with command like:
to double check the SAMBA config
setsebool -P samba_export_all_rw on
solve the problem which I had.
chcon -tR samba_share_t /path/to/samba/share
gave me an error:
chcon: cannot access `samba_share_t': No such file or directory
chcon: failed to change context of `/path/to/samba/share' to `unconfined_u:object_r:-R:s0': Invalid argument
not sure why is this.
This article here
has a couple of interesting points about the SAMBA and SELinux...
Also this thread is helpful on this occasion
Many thanks for helping me out on that occasion....
I will mark this as solved - but maybe we can find a reason why I get this error with the command which user Sydney was kind to post.