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Fix: The Recovery Server Could Not Be Contacted – Mac OS Sierra

Fix: The Recovery Server Could Not Be Contacted – Mac OS Sierra

If you are trying to install Mac OS X (while in mac os recovery mode) onto a new volume on your Mac over your LAN network or Wi-Fi, you may receive an error.

 

The recovery server could not be contacted.

 

A solution provided by a user (Brano) on our site:

1. Launch Terminal and type:

 

ntpdate -u time.apple.com

 

 

Note: If you receive "operation not permitted" put sudo in front of the command.

 

sudo ntpdate -u time.apple.com

 


2. Proceed normally.

 


The problem is, SYSTEM DATE is wrong, and CERT validation is failing (https)

First, ensure your Mac is connected to a wired or wireless network. To connect wired network, plug an Ethernet cable in. To connect to a wireless network, go to the top right corner of the screen and choose the wireless icon and connect to a network.

If you are still experiencing the issue, it is very likely that the Apple servers are busy processing download requests for other users. You may also see your installation time rise significantly but come down suddenly over time.

 

If you are currently experiencing this issue, use the comment form below to let us now.

 


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Comments

Adam on Saturday, 30 December 2017 01:42

BRANO - worked for me. Thank you! Note- I just installed a new hard drive, just for context

BRANO - worked for me. Thank you! Note- I just installed a new hard drive, just for context
Brian on Thursday, 28 December 2017 14:20

After I did what the above said by putting in the message below under terminal page, I still got same error as before.
ntpdate - u time.apple.com

Then I looked up in right hand corner and seen the Wi-Fi sign.
So I clicked on it, it showed I was connected to my Wi-Fi, but when I clicked my Wi-Fi name it come up requires password.

After I entered my password, it worked. I was able to download to High Sierra

After I did what the above said by putting in the message below under terminal page, I still got same error as before. ntpdate - u time.apple.com Then I looked up in right hand corner and seen the Wi-Fi sign. So I clicked on it, it showed I was connected to my Wi-Fi, but when I clicked my Wi-Fi name it come up requires password. After I entered my password, it worked. I was able to download to High Sierra
Jimmy on Thursday, 28 December 2017 06:49

It worked for me right away.

Thank you.

It worked for me right away. Thank you.
Pchy on Tuesday, 26 December 2017 21:33

I cannot update my mac to Sierra too. It showed the server could not be contacted.
Tried the above way by logging into terminal but following error message appeared "Can't adjust the time of day: Operation not permitted". (

I cannot update my mac to Sierra too. It showed the server could not be contacted. Tried the above way by logging into terminal but following error message appeared "Can't adjust the time of day: Operation not permitted". :((
Carly on Tuesday, 26 December 2017 16:37

Won't work, re-connected to internet, tried the terminal fix almost 20 times. Help? I'm just trying to update to 10 or higher from old mac to connect my ps4...

Won't work, re-connected to internet, tried the terminal fix almost 20 times. Help? I'm just trying to update to 10 or higher from old mac to connect my ps4...
Sectnet on Tuesday, 26 December 2017 15:54

This fix worked. Thanks!

This fix worked. Thanks!
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Wednesday, 23 October 2019


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