Canon PIXMA G620 G600 series User Manual - Page 235

• If the measures above do not resolve the problem, make sure the DHCP of the wireless router is enabled. For details, see the instruction manual supplied with the wireless router or contact the manufacturer. Check4 Check location of wireless router. Make sure the printer is not placed too far away from the wireless router. The printer can be up 50 m (164 ft.) from the wireless router indoors if unobstructed. Make sure the printer is close enough to the wireless router to be used. Place the printer and wireless router where there are no obstacles between them. Wireless communication between different rooms or floors is generally poor. Wireless communication can be impeded by building materials containing metal or concrete. If the printer cannot communicate with the computer over a Wi-Fi due to a wall, place the printer and the computer in the same room. In addition, if a device like a microwave oven that emits radio waves of the same frequency bandwidth as a wireless router is nearby, it may cause interference. Place the wireless router as far away from interference sources as possible. Step2 : Solve Problems, Using IJ Network Device Setup Utility Diagnose and repair the network connections using IJ Network Device Setup Utility. Download IJ Network Device Setup Utility from the below page, and install it on your computer. Checking Printer Connection Status Using IJ Network Device Setup Utility Refer to below in regard to starting up IJ Network Device Setup Utility. • For Windows: Starting Up IJ Network Device Setup Utility • For macOS: Starting Up IJ Network Device Setup Utility Step3 : Check Other Network-related Items Check1 Make sure Enable bidirectional support is selected in Ports sheet of Printer properties dialog box. (Windows) If not, select it to enable the bidirectional support. Check2 Make sure security software's firewall is off. If your security software's firewall is on, a message may appear warning you that Canon software is attempting to access the network. If this warning message appears, set security software to always allow access. If you are using any programs that switch between network environments, check their settings. Some programs use a firewall by default. Check3 If printer is connected to AirPort Base Station via LAN, make sure you use alphanumeric characters for network name (SSID). (macOS) Check4 Solve network troubles manually. 235