Wi-Fi Inspector: False Positive

Wi-Fi inspector claims my one router has a weak default password, but that’s definitely not the case…

My PC is directly connected to one router that provides the house with fibre internet, then I have a 2nd old router that I used to use for ADSL connected to that router to act as a wi-fi extender. According to the scan this router (a TP-LINK Archer C20), has a the default username password of admin:admin. Upon visiting the login page I can however not login with that username and password - I have to use the more secure password I configured when I set it up.

Hi, Please make me correct.
Normally the service provider only provide connection via one router thro, dsl cable. How you get access thro both the routers?
secondly, please check whether there is default position of user , other than admin in your router page

wi-fi inspector reports that my router’s password is “password” (without the quotes). but that is NOT TRUE.