NB: "try several times" is to look forward gauge (10% ... 11% ... etc) until it stops with or without an error message and then disconnect the keypad and start (20% ... 21% ... etc). Meanwhile, we sail to try to contact the helpdesk synologie (here: [...]).
Once installed (phew), the interface is fun but there is still work ... It would have been cool to be proposed scenarios to follow as usual we want to make the beast ... the other side, it is also an opportunity for someone that does not mind the technique of setting up something mastered from start to finish.
It's a nice toy, but not everyone.