Canon PIXMA MP495 Manual - Page 740

Cannot Communicate With the Machine/Cannot Print from the Machine communicate with the computer, confirmed in Check 9. If not, change the channel set to the access point. Check 11: Make sure that the firewall of the security software is disabled. If the firewall function of your security software is turned on, a message may appear warning that Canon software is attempting to access the network. If the warning message appears, set the security software to always allow access. If using any programs that switch the network environment, check their settings. Some programs will enable a firewall by default. Check 12: When using a router, connect the printer and computer to the LAN side (same network segment). For placement: Make sure that there is no barrier or obstacle between the access point and the machine. Page 740 of 759 pages The Machine Cannot Be Detected in the Network Check 1: Make sure that the machine is turned on. Check 2: Make sure that the USB cable is connected properly. When the machine is connected to the computer temporarily using a USB cable to change the wireless LAN settings, connect the machine and the computer securely referring to your setup manual. Check 3: Make sure that the machine setup is completed. If not, refer to your setup manual of the machine to complete the machine setup. Check 4: When using Canon IJ Network Tool, click Update to search for the printer again. Canon IJ Network Tool Dialog Box Check 5: When searching for a printer over a network, make sure that the machine is associated with the port driver. When No Driver is displayed under Name in the Canon IJ Network Tool, there is no association. Select Associate Port on the Settings menu, then associate the port with the printer. Canon IJ Network Tool Menus Check 6: Make sure that the network settings in the printer are identical with those of the access point. Refer to the manual provided with the access point or contact its manufacturer to check the access point settings, and then modify the machine settings. How to Set a WEP/WPA/WPA2 Key Check 7: Make sure that there is no obstruction. Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices. Check 8: Make sure that the machine is not place as far away from the access point. The access point is located indoors within the effective range for wireless communication. Locate the machine within 50 m from the access point. Check 9: Make sure that there is no source of radio wave interference in your vicinity. There may be a device such as a microwave oven using the same frequency bandwidth as the wireless station. Place the wireless devices as far away from the interference source as