Canon PIXMA iX6850 - Manual (Page 145)

The wireless connection may use the same frequency band as microwave ovens and other
sources of radio interference. Try to keep the printer and the access point away from such
sources.
• Check if the radio channel of the access point is close to that of other access points nearby.
If the radio channel of the access point is close to that of other access points nearby, the
connection performance may become unstable. Be sure to use a radio channel that does not
interfere with other access points.
• Check that the printer and the access point face each other.
Connection performance may depend on the orientations of the wireless devices. Replace the
access point and the printer in another direction to achieve the best performance.
• Check whether other computers are not accessing the printer.
If appears in the result of the measurement, check whether other computers are not
accessing the printer.
If still appears even if you have tried the above, finish the measurement, then restart the IJ
Network Tool to start over the measurement.
Note
• If any messages appear on Overall Network Performance:, move the machine and access
point as instructed to improve the performance.
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