Canon PIXMA MG6821 User Manual - Page 855

Machine Cannot Be Used After Replacing Wireless Router or Changing Its Settings When you replace a wireless router, redo the network setup for the machine. • For Windows: Use the Setup CD-ROM or follow the instructions on the Canon website. • For Mac OS: Follow the instructions on the Canon website. If this does not solve the problem, see below. Cannot Communicate with Machine After Enabling MAC/IP Address Filtering or Encryption Key on Wireless Router With Encryption On, Cannot Communicate with Machine After Changing Encryption Type at Wireless Router Cannot Communicate with Machine After Enabling MAC/IP Address Filtering or Encryption Key on Wireless Router Check1 Check wireless router setting. To check the wireless router setting, see the instruction manual provided with the wireless router or contact its manufacturer. Make sure the computer and the wireless router can communicate with each other under this setting. Check2 If filtering MAC addresses or IP addresses at wireless router, check that MAC addresses or IP addresses for computer, network device, and machine are registered. Check3 If using WEP or WPA/WPA2 key, make sure encryption key for computer, network device, and machine matches key set for wireless router. Not only the WEP key itself, but also the key length, key format, the key ID to use, and the authentication method must be the same for the machine, the wireless router, and the computer. Normally, select Auto for the authentication method. To set it manually, select Open System or Shared Key depending on the wireless router's settings. For details, see Setting an Encryption Key. 855