The Machine Stopped Working SuddenlyCannot Communicate with the Machine over the Wireless LANCannot Communicate with the Machine Using the Access Point ModeCannot Print or Scan from a Computer Connected to the NetworkCannot Communicate with the Machine over the Wireless LANCheck1 Make sure that the machine is turned on.Check2 Make sure that the network settings in the machine are identical with those ofthe access point.Refer to the instruction manual provided with the access point or contact its manufacturer to check the accesspoint settings, and then modify the machine settings.How to Set an Encryption KeyCheck3 Make sure that the machine is not placed far away from the access point.The access point is located indoors within the effective range for wireless communication. Locate the machinewithin 164 ft. / 50 m from the access point.Check4 Make sure that there is no obstruction.Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices.Check5 Make sure that there is no source of radio wave interference in your vicinity.If a device (e.g. microwave oven) using the same frequency bandwidth as the wireless station is placednearby, the device may cause interference. Place the wireless station as far away from the interference sourceas possible.Check6 Make sure that the network settings of the computer are correct.For the procedures to connect a network device to the computer and set them up, refer to the instructionmanual of your network device or contact its manufacturer.Check7 Make sure that the radio status is good and adjust the installation positionswhile monitoring the radio status with IJ Network Tool.Monitoring Wireless Network StatusCheck8 Make sure that a valid wireless channel is used.The wireless channel to be used may be limited depending on wireless network devices installed in thecomputer. Refer to the instruction manual provided with your computer or your wireless network device tospecify the valid wireless channel.674
