I find useless messages in the wifi.log file. All devices connect to my AT&T 1Gb Fiber connection but the MacBook Pro. This device connected without issue prior to the Monterey upgrade, now it's dead. Oddly, it completed the install, connecting repeatedly after two or three reboots. When finished, it claimed I connected, but that I had no internet. Switched to Linux device and Windows 10 device, no problem connecting there. Reboot MacBook, still no network configuration. Must be a DHCP problem.