I'm having difficulty installing a printer. If I go to the Brother website it gives instruction to download a Driver Install tool which leads to a download page. Typing in the model number in the search box gives this error: /An unexpected error occurred. // //We are now investigating the problem. // //Please wait for a while. / Waiting for a while does not help. I have another printer installed on socket://192.168.0.28, so I think I should try to install it via AppSocket If I go into CUPS and select Select Device > Network Printer > Find Network Printer > AppSocket/HP Jetdirect, then I don't what to enter for the host. /$ lpinfo --include-schemes dnssd -v/ returns nothing My linux version: /~$ lsb_release -a/ No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.3 LTS Release: 20.04 Codename: focal Can anyone suggest what to try? Thanks!