I recently replaced the old (b/g) Router for an office for a friend. To a newer ac capable router.
There are 2 printers in the office a Design Jet T120 and a officejet pro 8600.
There are 5 computers all wirelessly connected like the printers except 1 desktop connected to the router via Ethernet.
After installing the router I added all the printers in windows (7-10) I tested them and all printed fine. Day later no computer prints and each get printhead error when tryin even though the print head seems fine.