Skip to main content
nruk
nruk
New Member
September 14, 2018
Question

Four Way Handshake Timeout

  • September 14, 2018
  • 6 replies
  • 32127 views

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!

    6 replies

    Comtool_GmbH
    Comtool_GmbH
    New Member
    October 31, 2018

    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>
    bmorris
    bmorris
    New Member
    November 8, 2018

    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

    mortenrandrup
    mortenrandrup
    New Member
    April 5, 2019

    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

    ICTDESK_AVO
    ICTDESK_AVO
    New Member
    April 15, 2019

    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>
    rgodbey
    rgodbey
    New Member
    July 17, 2019

    We are having this issue as well.  Has anyone found a fix?  It's very frustrating.

    m_bux
    m_bux
    New Member
    September 13, 2019

    Hello @ all!

     

    We are having the same issue as well, several dozen times every day.

     

    >>>>

     

    Access Request rejected for Calling Station ID: <xx:xx:xx:xx:xx:xx>, Authentication Type: <WPA2 PSK>, Reason: <Four Way Handshake Timeout>

     

    <<<<

     

    Is this a known issue, is there a fix for it, or is there something we misconfigured in the controller settings?

     

    I really would appreciate an answer :)

    Callums96
    Callums96
    New Member
    October 21, 2019

    We recently had this issue at a school. All BYOD devices were unable to connect to the SSID. 

    On the Wireless controller it mentioned the 4 way handshake. We had to reboot all the AP's this fixed the issue. Not sure about others. I'd also try rebooting the W/C.

     
    forti-chef
    forti-chef
    New Member
    November 23, 2021

    Any news on this issue? We have the same problem recurring every day:

     

    <AID=xxx> Sending Station Disconnect, Reason : 4-way Handshake Timeout, Auth Type WPA2 PSK

     

    This is really a MAJOR issue, this Bug is now exists for 3 (!) years...

    eto
    eto
    New Member
    April 13, 2024

    Help. Has there been any feedback on this issue. I am getting many of these to the Event Log daily 

     

    Access Request rejected for Calling Station ID: <.............>, Authentication Type: <802.1X>, Reason: <Four Way Handshake Timeout>

    JDB_1
    JDB_1
    New Member
    October 29, 2024

    eto,

    Try changing your Radio RF band on the interface. Changing from .ax to .ac, depending on the AP you're using, worked for us with our Chromebooks. I hope this helps. Good luck! 

    Terms & ConditionsAccessibility statement