Hot!Four Way Handshake Timeout

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nruk
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2018/09/14 03:10:19 (permalink)

Four Way Handshake Timeout

Hi All,

Wondering if anyone else has had this issue or could advise?
There are lots of User 802.1x Authentication Failure's in our event log with the Four Way Handshake Timeout error - Is there any recommendations to try and resolve this?

Thank you!
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4 Replies Related Threads

    Comtool GmbH
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    Re: Four Way Handshake Timeout 2018/10/31 08:10:43 (permalink)
    hello nruk
     
    we're experiencing the same issue at one of our clients infrastructure. we have an mc3200 with about 70  

    AP822i. the authentication failure issue occurs with different devices (iphones, samsung galaxy, etc.) and different networks. did you manage to find a solution for this? any help is appreciated...
     
    best regards,
     
    Hannes
     
    Event:
    Access Request rejected for Calling Station ID: <MACADDRESS>, Authentication Type: <802.1X>, Reason: <Four Way Handshake Timeout>
    #2
    bmorris
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    Re: Four Way Handshake Timeout 2018/11/08 02:54:13 (permalink)
    Hi Guys,
     
     Maybe try running a packet capture on your RADIUS server. Are the request packets coming in? Any logs for rejections on the server?
     
    Ben
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    mortenrandrup
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    Re: Four Way Handshake Timeout 2019/04/05 00:29:57 (permalink)
    Hello
    I am responsible for our network at Herlev Privatskole - a private primary school in Denmark.
     
    We also have a MC3200 controller and AP832i, and we are struggeling with exately the same issue - a major problem with "Four way handshake timeout". The problem is destructing the lessons - but it only appears periodical. 
    I desperately need a solution on this issue, and by the way, we neither have a radius server or a server - our dhcp is controlled by our firewall.
    Can somebody please help solouting this major problem?
     
    Morten
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    ICTDESK_AVO
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    Re: Four Way Handshake Timeout 2019/04/15 05:02:00 (permalink)
    We have the same errors in the event logs. When this happens on the BYOD network with user authentication, 802.1x on the Radius server i can expect this issues. BUT: we also see this error on our WPA2-PSK SSID which is strange. This is on a school; there aren't any big complaints about connecting, but users may turn wifi off-on to try again. 
     
     
    It is not one device, so troubleshooting is hard, it seems random. 
    The WLAN profile is being added by a MDM system to the IPADs.
    Log entries.. Every few seconds this happens, 2000 active devices 180 AP's. 
     
      
    User 802.1x Authentication FailureMajorAccess pointSD-ST-144-OTablet-18:65:90:86:e8:4e04/15/2019 13:37:29Access Request rejected for Calling Station ID: <18:65:90:86:e8:4e>, Authentication Type: <802.1X>, Reason: <Four Way Handshake Timeout>  
    User 802.1x Authentication FailureMajorAccess pointSD-ST-139-OTablet-40:83:1d:51:ef:6504/15/2019 13:36:53Access Request rejected for Calling Station ID: <40:83:1d:51:ef:65>, Authentication Type: <802.1X>, Reason: <Four Way Handshake Timeout>  
    User 802.1x Authentication FailureMajorAccess pointSD-ST-109-OTablet-bc:e1:43:6d:19:7e04/15/2019 13:36:48Access Request rejected for Calling Station ID: <bc:e1:43:6d:19:7e>, Authentication Type: <802.1X>, Reason: <Four Way Handshake Timeout>
    #5
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