Wi-Fi connection issue with Engine OS 2.4.0

I have just updated my SC5000s to Engine OS 2.4.0, and now they won’t connect to my home wi-fi. I am using a Google Nest Pro wi-fi mesh, every other device is fine with this network, and I’m definitely using the correct password. The units show a logon failed message a few seconds after I enter the password.

The units are close to an access point and showing all bars (strength 81).

Anyone else got this issue?