Can't connect to admin page WAC104 Access Point

I guess I can provide a little bit of additional information re the situation. It is plugged in via the LAN1 port to a ethernet cable that runs to the main gateway inside of our house and all of the LED display lights that the guide said needed to be on were on. I do not have a laptop with its own ethernet port to try and set it up that way, so that option is off the table. I'm really, really, really confused as to why the thing wasn't accepting the password change and why it kept prompting it. Had it not done that, I was in the settings page and was literally one minute away from having it setup and ready to go.