My mid-2012 Air, on Mavericks, falls off the internet constantly. The connection is also frequently usurped by BT Fon, to which I do not subscribe. Other Macs in the household have no problem with wireless connection.
MacBook Air, OS X Mavericks (10.9.4)
Hello Biddy at Alembic
For issues with not being able to connect to Wi-Fi on your MacBook Air, check out the article below to go over the troubleshooting within to get it sorted out. As another troubleshooting option is to create a new Network Location as it could be an issue with your Wi-Fi configuration.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Using network locations (Mac OS X v10.6 and later)
http://support.apple.com/kb/HT5289
Regards,
-Norm G.
My 2012 MBA constantly drops off the internet
