Has anyone tried using a fixed (not auto) wireless channel setting from the router or access point?
The following article provides an explanation on non overlapping channels:
http://www.intel.com/support/wireless/wlan/sb/CS-031509.htm
The application below may help you choose the best channel:
http://www.metageek.net/products/inssider/
NOTE: These links are being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.