Instructions deficient and not in German!

Otherwise, good reception, even into the bedroom, through the walls (bathroom, hallway). On the balcony 1a reception, optically very nice, but also not small.
For most NETGEAR devices, except ReadyNAS products and fully managed switches, apply the following default user name and password as follows.
Username = admin
Password = password
Older devices: Password = 1234

How the hell should a layman (like me) know that ???? Annoying, had to google first!