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Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

  • 1.  Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 24, 2009 02:34 AM
    Hi,

    We are using AV+AS/NTP/PTP on windows xp laptop having 2Gb RAM with SP2.

    When we try to connect the laptop via local lan, it automatically get the IP Address from our DHCP server.

    Further if we try to connect the same via Wi-Fi, it gets hangup on Acquiring the IP Address.

    Pls help.



  • 2.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 24, 2009 04:39 AM
    Can you try to disable Network Threat Protection first then try to reconnect to your wifi to isolate the issue?


  • 3.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 24, 2009 05:02 AM
    HI Paul,

    we have checked the same.. When we disable NTp, it works fine. BUt as soon we enable NTP, its loosess communication.

    Also we have allowed all ports TCP/UDP in SEP firewall policy.

    Rgrds,
    SAM


  • 4.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 24, 2009 05:09 AM
    What is the version of SEP you are using?
    There were problems with EAPOL with versions < MR3


  • 5.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 24, 2009 05:47 AM
    Can you verify that the port 67 TCP/UDP are open?

    Please also allow the NetworkService DHCP Server be trusted.



  • 6.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 24, 2009 06:20 AM

    What is the version of SEP you are using?
    There were problems with EAPOL with versions < MR3

    Hi,

    Its SEP 11.0 MR4.

    Rgrds,
    SAM



  • 7.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 24, 2009 06:40 AM
    HI All,

    We are also facing the same issue whenever we stop NTP its allow me to connect through wireless network.

    Regards,
    Mansoor Rashid


  • 8.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.
    Best Answer

    Posted Mar 24, 2009 09:51 PM

    Can you verify that the port 67 TCP/UDP are open?

    Please also allow the NetworkService DHCP Server be trusted.



  • 9.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 25, 2009 03:07 AM
    Hi Paul,

    After allowing TCP/UDP port 67, it started working :)

    Thnx buddy..

    Rgrds,
    SAM


  • 10.  RE: Laptop not able to acquire IP ddress when connected via Wi-Fi LAN Access.

    Posted Mar 25, 2009 03:17 AM
    Glad to hear it,  Cheers, please mark my answer, as the accepted solution. Thanks!