E1200 wireless slow, but wired is fine

My newly installed E1200 only sends speeds of about 16 mbps wireless, but sends the ful 60 mpbs when wired.  What is going on.  Firmware is up to date.  Changing the channels didn't do anything.  Is there a way to figure out if the problem is with my laptops wireless card.  Please help

If you have a pc. http://www.7tutorials.com/what-network-and-sharing-center . Then click view status. Just for fun, try changing the mode to N only
I don't work for Cisco. I'm just here to help.

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