I am having trouble connecting to my Wi-fi printer. It shows up in Printers & Scanners but with a yellow dot – any suggestions?

If it is being displayed in System Preferences>printers & Scanners then that’s a good sign and suggests that your printer is connected to the network and discoverable. In more extreme circumstances you can right-click on the printer name in Printers & Scanners and select ‘Reset printing system’ to reconfigure your printer. Also, go to the manufacturer website and download the latest driver for your macos. Failing that, try this…