MacBook Wi-Fi can't connect on Connectify: invalid password I made a hotspot using a Wi-Fi external receiver connected on my laptop running Windows with a program named Connectify just today. 

My PC gets the Internet connection via the Ethernet connection and share it with Connectify. The name of my Wi-Fi network is "connectify".

I have noticed that only my iPad and iPhone are able to connect to it. 

My MacBook just says "invalid password" when I know for a fact that the password I configured is correct.

I've never been able to connect to my Wi-Fi network from my Macbook. I have already deleted the Wi-Fi location configuration and made a new one without sucess.

What might explain this MacBook or Wi-Fi failure?
Lets try to reset your Macs settings.

            Go to System Preferences &gt; Network.
            Click the Wi-Fi connection.
            Click the Advanced... button on the bottom right.
            Click the Wi-Fi tab.
            Under Preferred Networks, select your wireless network.
            Click the - (delete) button.
            Turn off your Wi-Fi connection.
            Turn it back on.
            Select and login to your wireless network. This will re-save your connection under Preferred Networks.
            Close your laptop and reopen it to test whether it worked.


Next would be to try connecting manually using your Terminal (located in the Utility Folder.

Copy following in to your Termial:

To find the Network

/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport scan


To Connect

networksetup -setairportnetwork en0 WIFI_SSID_I_WANT_TO_JOIN WIFI_PASSWORD


Replace the SSID and Password with your data.