I have tried to update the firmware using this method, but the device fails to update. I have tried using USB and network and each time it goes through the download phase on the application and you can see "An authorized user is making changes to this device. Please wait ..." on the 6515, but after several minutes I get an error on the applciation on the computer that the update failed check unit...
My problem was solved by switch the DHCP to OFF and set the manual IP address for my printer. My problem what I had was describe by Kentinoo first post with date 02-24-2020 05:09 PM. DHCP switch to OFF solved my problem.
-------------------- 02-24-2020 05:09 PM post -----------------
When I don't use it, it turns into sleep mode. The problem is I have no way to wake it up :
edjsk - what firmware version are you running that fixes the problem when turning DHCP off?