MacBook Pro :: Lost WiFi Password After Software Update

Sep 19, 2010

This morning I performed a 'Software Update' on my Macbook Pro and 6 new items were updated. The Mac then asked me to restart so I did but when it came back on I logged in as normal but it won't connect to my wifi unless I type in the password. I've tried Utilities > keychain manager but all I get is 'Access to this item is restricted' (when I click on show password and login again). My ipad and iphone are still okay and can access the wifi fine.

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Info:
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Here is some info:
Model Name:MacBook Pro
Model Identifier:MacBookPro5,1
Processor Name:Intel Core 2 Duo
Processor Speed:2.4 GHz
Number Of Processors:1
Total Number Of Cores:2
L2 Cache:3 MB
Memory:4 GB
Bus Speed:1.07 GHz
System Version:Mac OS X 10.6.4 (10F569)
Kernel Version:Darwin 10.4.0
Boot Volume:Macintosh HD
Boot Mode:Normal

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Apr 12, 2010

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The complicating factor here is that when my MacBook is on, all other computers on the network show getting WiFi signals but the connection isn't working for them either. When I turned off my MacBook and powered down/up the modem and router, other computers could connect successfully. (But when I turned my MacBook on, the computers lost connectivity to the internet. I've already played with the router's channels without success. I also made sure there weren't any unnecessary items in my Mac's DNS listing.

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Nov 17, 2009

I have brought Macbook A1181 from ebay it works fine but there were two accounts but I don't know the password and when I try to get back to the ebay seller he is closed he is account. Also I have read the Mac website that I need to use the Code: If you don't remember the password and automatic login is turned off, you can reset the administrator password using the Mac OS X User Install disc. Because a user with the Mac OS X install disc can gain unrestricted access to your computer, you should keep the disc in a safe place. To reset the administrator password using the Mac OS X disc:

1. Insert the Mac OS X Install disc and restart the computer.
2. When you hear the startup tone, hold down the C key until you see the spinning gear.
3. When the Installer appears, choose Utilities > Reset Password.
4. Follow the onscreen instructions to change the password.
5. Quit the Installer and restart your computer while holding down the mouse button to eject the disc.
But didn't received any CDs from him so I don't know what version of CD I need it also I am new to macbook so its fully confusing please somebody help me how to reset my password.

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May 12, 2012

when i update mac os 10.7.3 to 10.7.4 with internet , i stop download and turnof my macbook.and when The next day I was turnon my mabook, After entering the password ُ startup, Few moments later mark apple goes. Instead it a circle appears that the middle of it a line.I tried to get into the environment Safe mood, but i cant.Then I tried to get into EFI environment. But since it was published some have password protection. I published some of my work does not accept any password. Maybe I did not keep the password correctly. i backup my password with my Email or maybe apple id , but by me - but I do not know how can I find the EFI password.

Info:
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Info:Mac Pro

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A little pissed right now... How the heck can Windows F up the entire drive?

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Info:
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Info:
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Mar 13, 2010

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Mar 2, 2012

I just did the firmware update from my late 2011 Macbook Pro 13" (running 10.7.3) which all seemed to go fine, except I can't connect to my wifi any more. There is another 13" macbook pro, a 13" macbook air and 2 android phones which can all still access the wifi. I keep getting a message that my password is invalid (I know it's not). Everything I have tried has been done with the power supply connected.I have:

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Info:
MacBook Pro, Mac OS X (10.7.3)

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Info:
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