This will try and run diagnostics from the internet instead, so you will need to allow more time for it to complete.įollow these steps to boot your Mac into Safe Mode: Note 2: If pressing and holding the D key at Step 3 doesn't work, start again at Step 1 and, at Step 3 press and hold both the Option D keys instead. Take a note of the results and report back. Note 1: The extended test will take some time.
Take a note of the result and report back.
Your test results will appear in the window in the bottom-right of the console. However, I suggest you select the "Perform extended testing" checkbox before you click the Test button. When the AHT console appears, you can choose to run Basic tests by clicking the Test button. When prompted, select your language and click the right arrow. After a while, Apple Hardware Test (AHT) will start. Press and hold the D key before the gray startup screen appears. Then skip the steps below for performing these actions and try the Terminal commands I suggest. If you have, can you please edit your question to provide the results of performing both actions. If you haven't, then please follow the steps below for booting into Safe Mode and Running Apple Hardware Test. I'm assuming you've already booted into Safe Mode and used Apple Hardware Test (as suggested by Allan in his comment on May 11)? Troubleshooting is a process of elimination and often requires quite a bit of patience. My router was on and WiFi for other devices on the network. One thing I noticed, when booting from USB, There were no errors like Wi-Fi: No Hardware Installed but the spinner was continuously moving and searching for the networks and it had blank dropdown (without any results). Again upgraded to OSX Sierra but the issue persisted. Downgraded to OSX El Capitan (I thought there might be some issue with the upgrade), but the same issue still existed. Login in safe mode and then reboot, check system preferences same issue. 
I updated an screenshot with Wifi not displayed in the wifi setup in system utility.Īpple hardware test (Short term): No issues found. This gives me an error of: You cannot set Wi-Fi power because all AirPort network services are disabled. I tried networksetup -setairportpower airport on as well. Unfortunately, adding back a network has no option for Wifi. Finally, I tried to remove Wifi from the system preferences and add it back. I followed all the instructions given on that page, and from other sites including Apple support. I get the message Wi-Fi: No Hardware Installed, which is like the one described here: Wi-Fi: No Hardware Installed
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