Well… after different workaround to try to figure out what is happening… technical support asked me to try to connect from a Public WiFi:
they were right as you : everything works!
Now I guess I have to set up some port forwarding.
Can you tell me which ports and protocols need to be configured on the router Netgear DGN2200v3 ?
If moderator doesn’t mind I would go for a new topic.
Thanks.