Thanks Daniele,
all working as expected from setting up port forwarding (using Synolgoy through UPnP to configure the router). Once exception: on port 5001 (https://michaelgerberzh.synology.me:5001) I get a
michaelgerberzh.synology.me refused to connect
which seams to be blocke by the router. The other ports working fine - strange.
Any idea what the problem could be?
Thanks