Canon PIXMA iX6850 - Manual (Page 250)

Cannot Detect the Printer during Wireless LAN Setup: Check 3
Check the settings of the access point.
Check the settings of the access point for the network connection such as IP address filtering, MAC
address filtering, or DHCP function.
For details on how to check the settings of the access point, refer to the instruction manual supplied with
the access point or contact its manufacturer.
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