My office just inherited a 8150dn from another tenant and I can't get the printer to stay online. It stays online for about a day and then goes offline (likely related to the powersave cycle). Pushing the green button does wake it up, but it stays offline. The only way to get it back online is to power cycle. The firmware version is L.20.06. Any suggestions on what might be the issue? Is it possibly a firmware or hardware issue on the printer or maybe a printer setting?