Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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IMAC not getting an ip address when op-mode is set for mixed mode

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  • 1.  IMAC not getting an ip address when op-mode is set for mixed mode

    Posted Apr 18, 2012 08:46 AM

    I have run into a problem with 2 new IMAC's. Neither one connects to the wireless network when the op-mode is set to mixed mode. We have in place wpa-tkip and wpa2-aes. I created another ssid profile that only uses wpa2-aes and the IMAC connects everytime. Our "main" ssid which has been in place for a long time is set for mixed mode.  Has anyone else run into this problem? The machines are running 10_6 and 10_6_8 and we have hunderds of APPLE devices running the same OS.



  • 2.  RE: IMAC not getting an ip address when op-mode is set for mixed mode

    EMPLOYEE
    Posted Apr 19, 2012 06:11 AM

    Are these 802.11n access points, on an 802.11n WLAN?  Remove TKIP and see if it works.

     



  • 3.  RE: IMAC not getting an ip address when op-mode is set for mixed mode

    Posted Apr 19, 2012 06:38 AM

    we have a combination of AP125's, AP70's, and AP65's. I created a new ssid configured for WPA2-AES only and the iMacs connect with no problem; however, our  "main" ssid is configured as mixed mode.



  • 4.  RE: IMAC not getting an ip address when op-mode is set for mixed mode

    EMPLOYEE
    Posted Apr 19, 2012 06:41 AM

    On the 802.11n access points, WPA-TKIP will not allow clients to connect, unfortunately, so if you can slowly change all your clients to do AES, this will work.



  • 5.  RE: IMAC not getting an ip address when op-mode is set for mixed mode

    Posted May 02, 2012 01:14 PM

    We are seeing the same issue with Handheld scanners.  They don't work on Mixed Mode.  We are only advertising the SSID on one AP, so it's not something with 11n access point.



  • 6.  RE: IMAC not getting an ip address when op-mode is set for mixed mode

    EMPLOYEE
    Posted May 02, 2012 01:16 PM
    @salvi wrote:

    We are seeing the same issue with Handheld scanners.  They don't work on Mixed Mode.  We are only advertising the SSID on one AP, so it's not something with 11n access point.



     

    There are a few devices that do not like mixed mode.   Legacy devices are more likely to suffer from tthis.  The second reason is devices on an 802.11n AP trying to do anything besides Open or AES.

     

    You have a TAC case opened for this already, right?  They should determine which issue it is.