cbgraham Author

Level 1

9 points

Sierra Wi-Fi downloaded to ElCapitan OK restart on Sierra Message can not find the Wi-Fi hardware it still works if I return to ElCapitan ?

Sierra Wi-Fi downloaded to ElCapitan OK .Restart on Sierra. Message received ! Computer can not find the Wi-Fi hardware ? it still works if I return to ElCapitan ! Wi-Fi not compatible,It is possible to Access the internet if I use a cable a very long cable that stretches right access the house and up the stairs.

OBS Mac Pro, macOS Sierra (10.12)

Posted on Oct 2, 2016 10:48 AM

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5 replies

Level 10

210,519 points

Oct 2, 2016 4:56 PM in response to cbgraham

What model Mac Pro?

Did the wifi originally come with the Mac Pro?

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cbgraham Author

Level 1

9 points

Oct 2, 2016 5:01 PM in response to lllaass

The Wi-Fi card was fitted after the early 2009 was purchased MacPro5,1

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Level 10

210,519 points

Oct 3, 2016 1:12 AM in response to cbgraham

If your wifi card is a BCM4321 is is not compatible with Sierra

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cbgraham Author

Level 1

9 points

Oct 3, 2016 1:25 AM in response to lllaass

Thank you for your patience and help !

Do you know if there is a replacement Hi-Fi card ? and where could I purchase one.

Thank you !

C.B.Graham.

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Level 10

210,519 points

Oct 3, 2016 1:31 AM in response to cbgraham

https://eshop.macsales.com/item/Apple/BCM94322MCK/

That card works with Sierra in my MP

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Sierra Wi-Fi downloaded to ElCapitan OK restart on Sierra Message can not find the Wi-Fi hardware it still works if I return to ElCapitan ?

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