Kyocera 5035 prints only when restarted!

If you restart the printer, it works for 5 minutes and then you cannot ping the IP. It goes into sleep mode or something. I have tried re-installing drivers on the server and on each individual computers. Nothing seems to solve it. However the Scanner and the Copier on it seems to be working just fine without any problems. I can ping the Scanner anytime.

Any ideas. Any help would be great at this point.