I just applied the 7.7.3 firmware update to my 6 month old Time Capsule, and now it doesn't connect or join to my older, Airport Extreme. I fire up Airport Utility, but the older Airport Extreme doesn't show up anymore. Restarted it, no luck. Any ideas? Perhaps this is unrelated, but now on my MacBook Pro running Mavericks, the wifi bar at the top is greyed out, even though I still have an internet connection. The drop down menu shows I'm connected, but wifi wavy signal is grey. And weirder still, I'm getting twice as fast wifi than I pay for. I've gone from 23 to 56mps. Any ideas?