Usually until an Factory default or manual password change has been done this shouldn't had happened. Can you check if you can access the AP via CLI (putty with same password) or try default (super) (sp-admin). If this is not working you can reset your AP and build the network again ?
Log-in to the AP CLI using Putty application.
set factory is the command to reset the AP to factory default settings.
rkscli: set factory
Factory defaults will take effect after reboot
Rebooting... please wait.
Once the AP is rebooted the AP will goes to factory default settings with an IP address of 192.168.0.1.
Note: If there is a DHCP server in the network then the AP will be obtaining IP address from the DHCP server as APs are DHCP clients.