Macbook Pro - "Invalid Password" problem with home Wifi

Question

Level 1

10 points

Macbook Pro - "Invalid Password" problem with home Wifi

Hi folks,

As of 5 days ago...my MBP refuses to connect to my wifi at home. It constantly returns a "invalid password" response.

It has been connecting to this same wifi network for years, and nothing has been updated or changed on the network settings.

My iPhone and non-Mac computer can connect without trouble.

The MBP can connect to OTHER wifi networks, no problem.

As per here: Wi-Fi: How to troubleshoot Wi-Fi connectivity - Apple Support

I deleted all existing networks and re-started, but issue remains. This wifi uses a WPA2 password.

Something must be corrupted / broken on my MBP...but I can't seem to "start from scratch" to get my wifi working again. Extremely furstrating. Liek I said, my other devices can connect wirelessly without issues.

MacBook Pro (Retina, 13-inch, Late 2013), OS X Mavericks (10.9.5)

Posted on Feb 1, 2015 7:15 PM

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Answer 1

dominic23

Level 10

83,904 points

Feb 2, 2015 3:46 AM in response to David Hunt4

Power off the router. Unplug it from the wall. Wait a while.

Plug it back to the wall. Power the router on. Wait until all the lights are lit properly. It will take a while.

Restart the computer.

Start up in Safe Mode.

http://support.apple.com/kb/PH14204

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Answer 2

David Hunt4 Author

Level 1

10 points

Feb 2, 2015 2:14 PM in response to dominic23

Hi Dominic.

I just did this, and no luck.

My iPhone and other computer re-connected after the router was back online....but the MBP, in safe boot mode, still comes up with an invalid password message when I enter the password.

Next suggestion?

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Answer 3

David Hunt4 Author

Level 1

10 points

Feb 18, 2015 1:42 PM in response to David Hunt4

Wow...two weeks on.

Just an FYI for anyone curious....I haven't used my MBP the past two weeks, as this issue persists and I have a Desktop PC that works fine.

I will look into this issue more soon though...

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Answer 4

Feb 18, 2015 1:55 PM in response to David Hunt4

Hi David,

i have a 2 month old MBP with the same issue, I have posted a question but still no replies.

regards,

Darren

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Answer 5

Mar 4, 2015 4:02 PM in response to David Hunt4

I've just started to have this issue on a MacBook Pro Retina, all other devices connects flawlessly but the MacBook still shows the "Invalid Password" message, my router is an Apple Airport Extreme AC and I have another Aiport Expreme b/g/n and an Airport Express expanding the network, everything is running fine and this is the first time that I have this issue.

Additional Information: After a lot of configuration checks without any success I restarted the Airport Extreme AC router and this seems to have solved the issue, very strange but it may be related with the AC radio of the Airport Extreme, my MB Pro is the only AC device that I have here.

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