Nowadays, connecting to wireless networks is largely obligatory, especially now, when most Apple computers and Apple gadgets are only equipped with Wi-Fi modules and do not have a wired connection to the network, it is for this reason that proper work with Wi-Fi is a priority. Most often, all connection problems with the Wi-Fi dot end with the error “A connection timeout occurred” or “Failed to join network – a connection timeout occurred” or when your Mac tries to automatically establish a connection to the Wi-Fi point and it fails.

If you still encounter such problems, here are a few solutions.

Troubleshooting described in this article applies to almost any version of macOS and older versions of OS X.

Read more: How to Detect If Someone Was Using Your Mac?

Note: This manual there are items related to the removal of network settings, as a rule, for troubleshooting, you will most likely have to use options such as DHCP or TCP/IP.

How to Fix Problems with “A connection timeout occurred” on your Mac?

  • Turn off the Wi-Fi connection from the bar menu;
  • Remove any Thunderbolt or USB connected to the computer;
  • Create a folder for backup Wi-Fi settings on the desktop or in any place convenient for you;
  • Open Finder, then press “Command” + “Shift” + “G” and type in Library/ Preferences/SystemConfiguration/;
  • In this directory, copy the following files to the folder we created for the file backup:
  • Then in the folder “SystemConfiguration” delete the files that we previously copied to the reserve;
  • Reboot the Mac;
  • After restarting the computer, enable Wi-Fi in the network connection menu;
  • Add a new connection using the “+” icon at the bottom of the menu on the left, select the name for the new network in the menu and select “Done”;
  • Now set the authentication and login parameters for the Wi-Fi point and in the future everything should go without complications;
  • When everything is done, just click “Apply” and now you can safely work in the network.


When you are convinced that the Wi-Fi connection is stable and you can safely delete the folder with the backup network files without freezing. I hope this article helps you fix problems with Wi-Fi connection.

It’s the best time to ask questions and give us your feedback in comments.


Hi there! My Name is Vincent Lago! My goal is to share insightful reviews, guides, and manuals for people looking to know more about current solutions for Apple hardware and OS. I have years of technological background knowledge including owning a custom iMacs & PCs which was using for different types of business. And now, I want to share my experience with you.

1 Comment

  1. I tried this process and still have the timeout issue.

    Not all of the files listed in the example were in my System Configuration. I copied the ones that were there and then deleted them from the SC folder.

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