Apple is investigating potential MacBook Air WiFi issues, according to 9to5Mac. The website reports that Apple Store Geniuses were recently given the following directive:
In the United States, Apple Geniuses and Advisors should capture MacBook Air (13-inch, Mid 2013) and MacBook Air (11-inch, Mid 2013) computers with any WiFi issues.
The machines in question use a new 802.11ac WiFi chipset. Users have reported that affected MacBook Airs will connect to WiFi hotspots, but then drop the connection after a minute or two, requiring a restart to connect to the hotspot again. As Apple seems intent on getting a hold of affected machines, users who have noticed the issue should go to their Apple Store and request a replacement.