I've noticed on both my MacBook Pro and on my way newer mini iPad that when I'm in the back of my house, I get this message, and my ability to get on the network is delayed and sometimes never works. But when I'm sitting right in front of the router and the cable box, although the black rainbow still says "looking for Networks," at least I can get on. I've thought it was the router (TRENDNET) and I've thought it is the MacBook (a couple of years old). I've seen this question posted here, but have not seen a conclusive answer. HELP?