Interesting...interference??? So why do you suppose the sniffer failed to detect a signal, 2cm from the router? Also, I've had the router in the same location for over a year, and no new appliances or wireless devices.
I'm thinking that it's internal on the router, but I could be wrong. I've had the firmware crash on this router about 6 mo.s ago and had to reburn. Strange things go in inside that little blue box.
Thanks guys.
Cheers,
Jim