Hi, thanks. The issue has been solved. The client in question (the Macbook Air M3) was locked to the EAP683UR and when this AP was turned off, and the EAP772, then the client could not connect. Sorry...

Thank you for the hint. The omada controller update checker is pretty useless since it didn't show the latest firmware available. I have updated manually to the latest firmware version for the EAP772...

Several clients can connect fine to the EAP772 but only a Macbook Air M3 can not connect. I followed the rabbit hole and dug deep into the system settings of that mac and there is no fault to be...