I have a Canon MF644 color laser printer that I can't seem to keep connected to my wireless network. I have noticed that the IP address changes frequently. Print jobs continuously error out. I'm curious why the IP address changes as it does. I also wonder if I relocate it to the same room with my router where I can connect it directly to the router, if that might make a difference.

I would look into whether your router supports fixed DHCP IP reservations as a first choice. If not I would just change it to a static IP.

Assuming you can connect it to the router (or switch) via ethernet, that should solve your problem. If you can't, see if you can hook it up via a wifi extender. It will think it is connected via ethernet.

We use these in restaurants when we have that problem with kitchen printers. Simple and easy to set up.

WiFi Router