I tried to install the product's software for an Ethernet connection but cannot complete the installation in Windows or OS X. What should I do?

• Uninstall the printer software, then reinstall the software. Before reinstalling the software, check for the following:
  
  • Make sure your system meets the requirements.
  • Close any other programs, including screen savers and virus protection software, and install your product software again.
  • If you see an error message or your software does not install correctly in Windows, you may not have software installation privileges. Contact your System Administrator.
  • Make sure your product is turned on and the network cable is securely connected at both ends.
  Related references
  Windows System Requirements
  OS X System Requirements