I recently moved to a new apartment and have new service with RCN: 10Mbps download, 2Mbps upload. There are a decent amount of wifi signals in the area, and I have the latest version of Airport Extreme. Every time I click a link or submit a URL, there's a half-second or so lag before anything begins to load. Once a page begins loading, it is very quick. However, that lag significantly slows down my browsing. Would this be a wifi issue? An Internet service issue? Something else? Thanks.