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cmottau's profile

Tutor

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2 Messages

Sunday, January 7th, 2018 1:23 AM

Mac air won't connect to wifi

I cannot connect my Mac Air to my ATT wifi.  My laptop connects to other wifi networks, including my phone's hotspot.  I have other devices currently connected to the wifi network. I see the network when I click on the wifi icon, but when I try to connect I receive an error that says, "The wifi ***  cannot be joined." 

Accepted Solution

Official Solution

Expert

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15K Messages

6 years ago

Below are some things you could try (no guarantee of success):

  • In the Network preferences for your wifi/airport, click Advanced, TCP/IP, make sure the IPv4 setting is "Using DHCP" and click the renew the lease button.
  • In the network wif/airport advanced settings, preferred networks, delete the gateway's wivi ssid if it's there (highlight and click the minus at the bottom of the table to delete).
  • In the gateway, try changing the wifi's channel.
  • Ask for ideas in the Apple Support Communities (Macbook Air) forums.
  • Google search for possible solutions.

Tutor

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2 Messages

6 years ago

Thank you, I renewed the lease and it worked!  

Expert

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15K Messages

6 years ago

Cool, glad it was such a simple solution.

Contributor

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1 Message

6 years ago

Yay!!! This worked! I had to call AT&T and they sucked, then I called Apple and they are about to make me return my computer for a new one. After 2 1/2 hours I am so thankful for this, and if anyone has AT&T U-verse you need to go on here

New Member

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3 Messages

1 year ago

When you perform the steps above are you doing it from the MacBook or the AT&T router? 

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