Canon PIXMA G3520 Online Manual

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Printing Network SettingsCheck4 Make sure the printer is not placed too far away from the wireless router.If the distance between the printer and wireless router is too far, wireless communication becomes poor. Placethe printer and wireless router close to each other.Check5 Make sure wireless signal is strong. Monitor signal strength and move printerand wireless router as necessary.Place the printer and wireless router where there are no obstacles between them. Wireless communicationbetween different rooms or floors is generally poor. Wireless communication can be impeded by buildingmaterials containing metal or concrete. If the printer cannot communicate with the computer over a Wi-Fi due toa 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 awireless router is nearby, it may cause interference. Place the wireless router as far away from interferencesources as possible.Check the signal strength on the LCD.LCD and Operation PanelCheck6 Make sure Enable bidirectional support is selected in the Ports sheet of thePrinter properties dialog box. (Windows)If not, select it to enable bidirectional support.Check7 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 attemptingto 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 programsuse a firewall by default.Check8 If printer is connected to an AirPort Base Station via LAN, make sure you usealphanumeric characters for network name (SSID). (macOS)If the problem is not resolved, click here and redo setup.333