The network name/password at my office changed recently and I have been unable to print or scan wirelessly to my MX870 since, even after setting up both my computer and my 3-in-1 on the new network. In addition, after deleting the printer in the Printer & Scanner System Preferences, I was unable to add it back in as a printer. It only shows up as a scanner. My computer is a MacBook Pro OS 10.9.5.
