@rokuta Hello, are you using the Archer C9? You may send the debug log to our support email and we will follow it up: https://www.tp-link.com/support/contact-technical-support/#E-mail-Support

@Dalibor_K @Fakhri_h Hello, thanks for bringing this up. Are you both requiring the printer controller utility to work on the latest macOS Big Sur? We are sorry that we don't have the latest version...

@Swest Hello, apologies to hear that. May I know what is the detailed macOS version of your iMac? Which printer controller utility have you tried to install on it? We will soon check this out, thanks.

@Whiskey8 Hello, thank you very much for the detail and we would like to escalate your case to our engineers, and they will help follow it up, if you are willing to do further analysis, please check...

@mmstick76 Hello, thanks for getting back. We would like to escalate your case to our engineers, and they will help follow it up, if you are willing to do further analysis, please check your inbox...

@ausinuk Hello, thanks for getting back. We would like to escalate your case to our engineers, and they will help follow it up, if you are willing to do further analysis, please check your inbox and...