(Coming back to this after taking a break for a few days) I realized that I had left the caps lock on when inputing the SSID; also, the Arduino's Wi-Fi module doesn't seem to have 5GHz capabilities. Problem solved.
(Coming back to this after taking a break for a few days) I realized that I had left the caps lock on when inputing the SSID; also, the Arduino's Wi-Fi module doesn't seem to have 5GHz capabilities. Problem solved.