A direct USB connection (between printer and computer with reset utility) is required to complete a waste counter reset.
The reason for this is that the waste ink counter resides in the printer firmware and as such a stable connection is required. Network connections, particularly wireless, can be interrupted at a critical juncture and any interruption during a firmware update usually results in an expensive printer that no longer functions.
The good news is that any reset process only requires a USB connection to complete the reset. It is not required after that, so you can reset the printers waste ink counter and then return the printer to normal connectivity (WLAN, LAN, etc..) as before.