Reconnecting to a new network/router

My Cloud OS 3 Personal & Network Attached Storage My Cloud Mirror
1

Hi - I have a new router with all new network settings.
It seems my MyCloud Mirror is trying to connect to the old network settings which I do not remember…
How can reset it and how can I connect to it - directly with my laptop? What should the network setting be on my laptop in such a case?
TIA
Jack