Unable to access a TP-Link EAP 770's Web Interface

I've tried to access each of 3 new TP-Link EAP 770 access points' web interface using current version of Firefox on a Mac and a Windows 11 laptop and I believe there's some security setting blocking the access. Usually, I would receive the warning with an "Advanced" button to allow you to continue to the web interface, but now I only receive a "Looks like there's a Problem with the Site" with a "Try Again" button. I had an older Windows 10 laptop with an older version of Firefox that actually allowed me to access one of the access points, but after the laptop had been online for a few minutes (and updated the Firefox version) my access started to fail again. Any help is appreciated.

Thanks, JB