EDIT: As this turned out to be an issue with OS X and not the MBA's hardware, I reposted here. Mods, please feel free to delete this thread. Hi everyone, I discovered this forum when I was originally considering buying a 2013 MBA, and ended up picking it up - 13/i5/8/256. I also picked up an Airport Extreme. Let me begin by saying that this is not a troll thread like the other one. I would truly like to resolve this issue, and continue using the MBA and OS X. I am seeing speeds of 10-12MB/s when transferring files from my Windows Server 2008 R2 server. Originally, I thought my issue was the router, then I broke out my old laptop (5 year old Lenovo T400 w/Intel 5100 AGN card). Sitting right next to my MBA, it transfers at 18-20MB/s. Then I rebooted the MBA in Windows 8 to test. I see 40-50MB/s. Is this an issue with OS X and SMB, a driver issue, or is there some sort of power save/performance setting that’s on by default for wireless in OS X? For the latter, I am imagining something like in Windows Power Options, Plan, Advanced, Wireless Adapter Settings. Thanks in advance.