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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

Krista on Wednesday, 24 January 2018 11:30

This does not work.

Typed it in the terminal and got this message:

24 Jan 12:29:22 ntpdate[6452]: Can't adjust the time of day: Operation not permitted

Now what? This is ridiculous.

This does not work. Typed it in the terminal and got this message: 24 Jan 12:29:22 ntpdate[6452]: Can't adjust the time of day: Operation not permitted Now what? This is ridiculous.
Gary on Monday, 22 January 2018 23:40

I am in the process of restoring my iMac. I got to the point where I was prompted to install the new OS. I received the message:"The recovery server could not be contacted.". When trying to change date in Terminal the keyboard was unresponsive. I do not know how to get past this. Do I need a a wired USB keyboard?

Help

I am in the process of restoring my iMac. I got to the point where I was prompted to install the new OS. I received the message:"The recovery server could not be contacted.". When trying to change date in Terminal the keyboard was unresponsive. I do not know how to get past this. Do I need a a wired USB keyboard? Help
Janine on Sunday, 21 January 2018 20:53

Changing the date worked to the point in the installation where it says "select the disk where you want to install macOS" I have no options on my screen and all it is allowing me to do is click "back" arrow. I have restarted it a few times to get stuck at this point.. Please help!

Changing the date worked to the point in the installation where it says "select the disk where you want to install macOS" I have no options on my screen and all it is allowing me to do is click "back" arrow. I have restarted it a few times to get stuck at this point.. Please help!
Chloe on Sunday, 21 January 2018 17:41

Typed this: ntpdate -u time.apple.com
Answer: no server suitable for synchronization found
Typed this: sudo ntpdate -u time.apple.com
Answer: WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:

What do I do now?

Typed this: ntpdate -u time.apple.com Answer: no server suitable for synchronization found Typed this: sudo ntpdate -u time.apple.com Answer: WARNING: Improper use of the sudo command could lead to data loss or the deletion of important system files. Please double-check your typing when using sudo. Type "man sudo" for more information. To proceed, enter your password, or type Ctrl-C to abort. Password: What do I do now?
sergio on Friday, 19 January 2018 10:43

it works. thanks ???

it works. thanks ???
Dan on Wednesday, 17 January 2018 03:26

This worked for me "sudo ntpdate -u time.apple.com"

This worked for me "sudo ntpdate -u time.apple.com"
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Wednesday, 23 October 2019


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