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PTK Challenge Failed

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  • 1.  PTK Challenge Failed

    Posted Mar 06, 2024 04:57 AM

    Hello Experts, 

    I find issue "PTK Challenge Failed" in Airwave,

    Many people recommended to Update Mobility master which was run 8.6.0.9 to new version, 

    Last Sunday I have updated all materials such as Mobility Master and two 7502  controllers with 155 AP with new version(8.10.0.6LSR) 

    But still this issue shows in airwave and clients complains disconnection issue with their laptop, 

    Any Hint? 

    Thank you



  • 2.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 08:15 AM

    Why 8.10.0.6 over 8.10.0.10 which is the current latest in 8.10?



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    Josh
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  • 3.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 08:22 AM

    Can you share more about the WLAN configuration? Security mode used? 802.11r? OKC? Scope of impact to clients? Client types and driver/OS versions?



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    Josh
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  • 4.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 08:33 AM
      |   view attached

    Yes, 

    Drop Broadcast and Multicast: in enable 

    Convert Broadcast ARP requests to unicast: is enable 

    802.11k Profile is enable with 

    -----------

    In SSID part

    802.11r is enabled 

    Steering Mode: Prefer 5GHZ

    802.11g Beacon Rate: default

    802.11a Beacon Rate: default

    Enable OKC is checked(enable)

    also Client match: is checked(enable)

    Key management: WPA2-Personal(Use static Pre-Shared Key (PSK)) 

    for both 2.4GHz and 5GHz 




  • 5.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 08:44 AM

    Is this happening to all clients connected to this WLAN or just a few clients?

    What does show auth-tracebuf mac <mac> show for a client failing the ptk challenge? 



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    Josh
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  • 6.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 09:15 AM

    Honestly is random, 

    for example 

    this command did not show any issue, show auth-tracebuf mac 




  • 7.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 09:19 AM
      |   view attached

    For your info 




  • 8.  RE: PTK Challenge Failed

    Posted Mar 08, 2024 03:27 AM

    Hello, 

    Still this issue persist and I do not know what should I do for it, 




  • 9.  RE: PTK Challenge Failed

    Posted Mar 08, 2024 08:50 AM

    Open a TAC case and give them as much detail as possible.




  • 10.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 08:23 AM

    I do not know, But I updated from 8.6.0.9 to 8.10.0.6 because only this version is compatible with our AP, 

    AP 315, 

    AP 335 

    AP 345

    AP 535 




  • 11.  RE: PTK Challenge Failed

    Posted Mar 06, 2024 08:28 AM

    Patch releases such as 8.10.0.6 and 8.10.0.10 do not remove support for APs. They are the delivery vehicle for bugfixes.



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    Josh
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