Did you try manually adding the printer to the network , like I suggested in the last message?
Ok, instead of running the connection doctor..
Instead, view this page and on the printers control panel, follow Step 2 on this page to manually connect the printer to the network
Once you have connected the printer manually to the network.. try adding the printer again using the setup wizard on the computer, or by opening devices and printers, clicking add printer and then choosing the printer.
Does that work, if not exactly where do you get stuck?
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Senior Technician and Network Switching Systems Operator / Maintainer.