5,1 updated to Sierra and no more WIFI

Discussion in 'Mac Pro' started by iamnotme, Feb 12, 2017.

  1. iamnotme macrumors regular

    iamnotme

    Joined:
    Jan 24, 2015
    Location:
    SW Ontario, Canada
    #1
    I had el cap running on it with factory wifi hardware and it worked great. The update to sierra went smoothly with no errors but now I have WIFI.

    It's an all stock machine with 2 X 6 core xeons.

    Any suggestions?

    Thanks
     

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  2. Zobrien macrumors member

    Zobrien

    Joined:
    Feb 4, 2017
    Location:
    Tennessee
    #2
    I had this problem with my 09' flashed to 10'... apple made the earlier version airport cards incompatible with OS X sierra. You need to upgrade to the newer wifi card for it to recognize your wifi adapter.
     
  3. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #3
    This should not happen on a stock 5,1.

    A quick search shows that your cMP is a 4,1 flashed 5,1, not stock 5,1. Also, with dual X5680, not the stock CPU as well.

    So, most likely your "4,1" shipped with a Wi-Fi card that simply not supported in Sierra.
     
  4. Zobrien macrumors member

    Zobrien

    Joined:
    Feb 4, 2017
    Location:
    Tennessee
    #4
    Yep, al 4,1's and before have unsupported wifi cards. The new ones cost about 25 on amazon
     
  5. whgmkeller macrumors newbie

    whgmkeller

    Joined:
    Aug 15, 2016
    Location:
    Netherlands
    #6
    Sometimes, when OSX goes into sleep mode, it looses the WIFI settings. This is remedied by turning off the machine, removing the power cable, waiting for 15 minutes, and starting up again.
    Maybe you can try this.

    Willem
     

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