Some initial passwords like “user”, “admin” come into conflict when WPA/WPA2 Wifi security is enabled.
E.g., an iPhone doesn’t allow passwords shorter than 8 characters.
I´d like to recommend using standard passwords with at least 8 characters length.
See also
#1 – JensHauser 于 2020-08-14
It´s already like that. I mixed up user credentials and Wifi passwords.