Internet recovery give me 2102f

Question

fredericjost Author

Level 1

13 points

Internet recovery give me 2102f

Hi, how to solve the 2102f issue in internet recovery?

MacBook Pro 13", OS X 10.11

Posted on Apr 28, 2019 1:22 AM

Reply

Answer 1

Top-ranking reply

leroydouglas

Level 10

199,314 points

Apr 28, 2019 7:27 AM in response to fredericjost

This is a generic error of not much value—not able to connect to Apple server for some unknown reason.

Server may not be available

Your Network speed may not be fast enough

Requires WiFi for the connection

You can try again or try Recovery (command R) this is a local partition on your HD if available.

What issues are you having with your Mac?

Reply

Answer 2

fredericjost Author

Level 1

13 points

Apr 28, 2019 8:08 AM in response to leroydouglas

Thanks for your feeback,

I used my mac in dual boot with ubuntu.

I want to recover my mac as in the original state.

I have follow the doc https://support.apple.com/en-us/HT204904

I reboot, then press `cmd + R`, and after selecting my wifi network and very difficult to type my wifi password (I pressed a key and 10 seconds later the letter appeared in the field) I ended by pressing the enter key. After 30 minutes I got this error message.

I decided to start the procedure again, and there it seems to be okay but it's horribly long. The timer started showing 2:30 and then 4:00 and 7:00 and now 24h!

I am connected to wifi, my connection is very fast, I am equipped with fiber.

It is now almost 7 hours.

Edit: I have no adapter for ethernet port and I only have an old mac for create a recovery via usb so I have no tried this solution https://support.apple.com/fr-fr/HT201372

Reply

Answer 3

Tesserax

Level 10

158,184 points

Apr 28, 2019 10:54 AM in response to fredericjost

FWIW. If any of the following are true about your network connection, you will not be able to

reinstall macOS using Internet Recovery Mode:

The wireless network is configured to use a hidden (non-broadcast) network name or SSID.
The wireless network is secured with either WEP or WPA-Enterprise.
The connection requires certificate-based authentication / 802.1x
The connection requires the use of Proxies (where specific proxy servers must be configured in network preferences)
Captive Wi-Fi networks (where you click an “Agree” button to access the Internet)
PPPoE (where there is no router handling the PPPoE connection)
Failure of the router to provide a workable DNS server address, or providing 0.0.0.0. This typically is seen with a -2002f or -2003f error message.

Reply

Answer 4

fredericjost Author

Level 1

13 points

Apr 28, 2019 12:47 PM in response to Tesserax

1 - nop

2 - internet recovery ask me the wifi password, I give it. My other devices don't have issue to connect to the box so I don't understand this point.

3 - I never touch to this and never encountered issue

4 - nop

5 - nop

6 - nop

7 - I encountered only the -2102f for the moment

The progress bar progress but very very very slowly, 1milimeters per half hour :D and the timer is locked to 24hours.

I am hesitating between buy an adapter to connect at the box with ethernet or going to the app store :(

Reply

Answer 5

leroydouglas

Level 10

199,314 points

Apr 28, 2019 1:06 PM in response to fredericjost

Did you try change the DNS server

>System Preferences>Network>Advanced>DNS

Google Public DNS Server

Preferred DNS server: 8.8.8.8

Alternate DNS server: 8.8.4.4

OpenDNS

Preferred DNS Server: 208.67.222.222

Alternate DNS server: 208.67.222.220

Verify >System Preferences>Network> Advanced>Wi-Fi drag your network to the top of the list

then

>System Preferences>Network>Advanced>TCP/IP>Renew DHCP Lease

Reply

Internet recovery give me 2102f

Similar questions