Lenovo WLAN card WPA2-Enterprise APIPA











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Our Lenovo laptops (different models) probably at the same time started APIPA. The network is WPA2-Enterprise, certificate auth. Error message: IP doesn’t have a valid configuration.



Model: E570; NIC WLAN: Qualcomm Atheros QCA9377



We tried plugging external USB wifi adapter and that works flawesly. I also tried various of commands to reset almost everything, of course have reinstalled driver.



Wired connection connects instantly.



Other computers has no problems at all and are made by different brands.



I’m battling this issue for weeks, however today I can confirm it is caused by client computer, because other wifi adapter works.



What could cause this problem? Windows update? DHCP is configured properly and server renews IP but somehow computer is not accepting it.



(WPA2-Personal works.)






ip dhcp wpa2







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    up vote
    0
    down vote

    favorite












    Our Lenovo laptops (different models) probably at the same time started APIPA. The network is WPA2-Enterprise, certificate auth. Error message: IP doesn’t have a valid configuration.



    Model: E570; NIC WLAN: Qualcomm Atheros QCA9377



    We tried plugging external USB wifi adapter and that works flawesly. I also tried various of commands to reset almost everything, of course have reinstalled driver.



    Wired connection connects instantly.



    Other computers has no problems at all and are made by different brands.



    I’m battling this issue for weeks, however today I can confirm it is caused by client computer, because other wifi adapter works.



    What could cause this problem? Windows update? DHCP is configured properly and server renews IP but somehow computer is not accepting it.



    (WPA2-Personal works.)






    ip dhcp wpa2







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Our Lenovo laptops (different models) probably at the same time started APIPA. The network is WPA2-Enterprise, certificate auth. Error message: IP doesn’t have a valid configuration.



      Model: E570; NIC WLAN: Qualcomm Atheros QCA9377



      We tried plugging external USB wifi adapter and that works flawesly. I also tried various of commands to reset almost everything, of course have reinstalled driver.



      Wired connection connects instantly.



      Other computers has no problems at all and are made by different brands.



      I’m battling this issue for weeks, however today I can confirm it is caused by client computer, because other wifi adapter works.



      What could cause this problem? Windows update? DHCP is configured properly and server renews IP but somehow computer is not accepting it.



      (WPA2-Personal works.)






      ip dhcp wpa2







      share|improve this question













      Our Lenovo laptops (different models) probably at the same time started APIPA. The network is WPA2-Enterprise, certificate auth. Error message: IP doesn’t have a valid configuration.



      Model: E570; NIC WLAN: Qualcomm Atheros QCA9377



      We tried plugging external USB wifi adapter and that works flawesly. I also tried various of commands to reset almost everything, of course have reinstalled driver.



      Wired connection connects instantly.



      Other computers has no problems at all and are made by different brands.



      I’m battling this issue for weeks, however today I can confirm it is caused by client computer, because other wifi adapter works.



      What could cause this problem? Windows update? DHCP is configured properly and server renews IP but somehow computer is not accepting it.



      (WPA2-Personal works.)






      ip dhcp wpa2




      ip dhcp wpa2






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 21 at 14:56









      NetWork67

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