AirPort Utility asks for device password but does not accept
Use AirPort Extreme with AirPort Express to extend network to guesthouse. AirPort Firmware is up to date .
iMac late 2013 Mojave / iPad Pro 3 gen iOS 12.1
I set up three years ago. I wanted to view info on the Airport Express ( from iPad ) and it asked for device password. I entered my device password, not accept.
Entered my iMac password and network password, not accept.
tried Device password again, then it asks to put to keychain, I say yes.
But I still cannot view the information and it is endless loop with asking for device password. Airport Utility never asked before for password. how to correct?
iPad Pro Wi-Fi 12.9 (2018)-OTHER, iOS 12.1