As some of you might know there is a bug where your Wi-Fi (Which let's still keep calling Airport, okay?) has to be turned off and turned back to get it to work. Something about system overload in console. I'm using a first generation Airport Express. So originally I thought perhaps that was the issue. At the same time some of my widgets (Even Apple's own weather widget) were not receiving information. I dismissed that as another bug that would get fixed. Well after reverting back to 10.6 and then saying "Screw it. I'll wait for 10.7.1!" I decided to re-download Lion and said "I'm going to fix this" I went back to 10.7.0. Did some digging. On a whim I decided to change my Airport Express to one fixed channel and suddenly my connection is staying up and those widgets magically began to work. Perhaps an IPv6 (A guess) issue or a problem in Lion's code dealing with older hardware or "automatic" channel selection? In the interest of full disclosure I can tell you that my Airport Express is on it's last leg, often needing to be unplugged and plugged back in. Eitherway I'm sure they will fix it. Hopefully this'll help others with the same similar problem.