Every device in the world which can connect to a network has a unique identifying address call the MAC address. (This has NOTHING to do with Apple products - although they too will have mac addresses.) The one for your printer will be on the documentation, and probably on the box.
Most routers have the ability to only allow specified MAC addresses to communicate through the router. If you have not got such filtering enabled in your router then you need do nothing. If you have got mac filtering turned on then you need to type the printer's address into the appropriate page in the router's setup.
I was having the same problem with my Mac and my Epson Workforce 545 wireless printer. Here is what I did and it works for me. Hopefully it will for you as well. Click on the Apple icon and go to System Preferences 2. Click on Print & Fax icon 3. Click on Options & Supplies 4. Go to 'Print Using:' drop down menu 6. Click on 'Select Printer Software' 7. Shop online for colour, mobile and all-in-one printers and scanners for Mac. Buy online with fast, free shipping.
There is nothing on the printer to 'disenable'.(sic) - The more people I meet, the more I like my dog. MCC 2011, 2015, 2017.