Fix Slow Wifi on Mac OSX Yosemite for iMac and MacBook Pro

After upgrading to Mac OSX Yosemite many users are experiencing Slow wifi issues. Many users are having issues connecting to websites specifically with resolving a domain name to an IP, while Apple seems to be bringing out a constant stream of updates for Yosemite, it hasn’t addressed this issue yet and Reddit user IAMAOG has found a way to solve the issue.

The issue seems to lie  in Apple’s new Discovered process, which is responsible for name resolution

How to Fix Slow Wifi on Mac OSX Yosemite

Yosemite wifi problems

  1. On your Mac, open up your Terminal (this can be found under Utilities in Launchpad)
  2. Run the following command: killall discoveryd
  3. Then run the following 2 commands: sudo launchctl unload -w /System/Library/LaunchDaemons/
  4. and: sudo launchctl load -w /System/Library/LaunchDaemons/
About the Author

Hello, my name is Niels Bosch
and i am the founder of AmongTech. Currently living in the South of Spain. My main interests are web development, playing video games once in a while, Apple, Marketing and SEO. I am currently studying Business administration, Networking & Security and Database management and will be doing so for the next year.


  1. Apple is very bad these days. First it was iOS and now they are releasing unverified OS X updates to all users world wide. My iMac was just fine and WiFi issue started to happen only after updating to the 10.10.2. Thanks for the write up Niels.


  2. whatever i typed in terminal completely broke all of my apple services, nothing loads (itunes, app store, messages) only 3rd party programs are working now

  3. I did this on my MacBook and since then, it’s fucked up my internet. I can’t use Safari, App Store, iTunes, Mail, nor iCloud. The only app I can use to surf the web is Chrome. I’ve reset my PRAM and SMC numerous times and tried repairing my disk. How do I fix this?

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