I'm transferring files over Airdrop between 2 Macs running Yosemite. Before (10.8) it was pretty fast, reaching around 30M/second. Now (Yosemite 10.10) it's around 300k/second. Is this drop in speed because of the Yosemite upgrade or is something wrong with my Mac (it's a mid-2012)?

  • Airdrop was changed significantly in 10.10 to include iOS interop support. It still shouldn't be 300 KBps though.
    – 0942v8653
    Nov 28 '14 at 0:31

I've noticed the same thing when I connect to a hotspot after upgrading to Yosemite, and to a lesser extent any wifi network. It seems to be an issue of new software issues and the wifi max speed.


Option-clicking on the wifi icon and selecting Disconnect from <Network name> will disconnect you from your current wifi network, which has tripled or quadrupled speed for me when starting a new transfer. This works best when both computers are disconnected. It kind of sucks, but when you're transferring files in the hundreds of megabytes as I was, it's worth it.

  • Cool, I'll try this next time. Jan 25 '15 at 1:45
  • For me this did not work. I am on macOS Sierra, and if any (or both) computers are disconnected from the WiFi the discovery works fine, but the transfer never starts. Dec 19 '16 at 21:26

Initial versions of Yosemite used some new Wifi code that resulted in some serious issues for some users. If you are suing Wifi for Airdrop (which is likely), these Yosemite-induced wifi issues could have caused the slow Airdrop speeds you experienced. Later version of Yosemite (10.10.3 and later, I believe), fixed the Wifi issue (for most users). And El Capitan maintained that fix. So, upgrading your operating system could the solution.

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