Endpoint Protection

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  • 1.  SEP blocks DHCP in Windows Server 2008R2 - HELP!!!

    Posted Feb 08, 2010 04:09 AM
    Hi,

    My setup
    *********


     - Windows Server 2008 R2 /DHCP /DNS /Domain services
     - Syamantec Endpoint Protection version 11.0.5002.333 is installed.



    Problem
    *********


     - I have a very strange problem with SEP. It blocks every incoming DHCP discover request. If i disable it, the dhcp discover works fine and dhcp can lease ip to clients. I have tested this on another computer with the Server 2008R2. Why should SEP block incoming DHCP request? Is there anyway that i can fix it? Anyother have the same problem?

    Every input is kindly appriciated.




  • 2.  RE: SEP blocks DHCP in Windows Server 2008R2 - HELP!!!

    Posted Feb 08, 2010 04:17 AM
    you need to add network service in firewall for dhcp and dns

    open sepm
    policies
    firewall
    right click edit
    click on add rules at the bottom
    click on add network service at the bottom
    select dhcp server, dns, ftp, whatever you want to allow
    click on finish
    move this policy to the top, ( 1st)
    apply to all your groups,should allow dhcp request
     



  • 3.  RE: SEP blocks DHCP in Windows Server 2008R2 - HELP!!!

    Posted Feb 08, 2010 04:18 AM
     Have you installed all components of SEP. Mainly Network Threat Protection ( Firewall). The firewall might be blocking these request.Would recommend to install only Antivirus and Antispyware on the Server.


  • 4.  RE: SEP blocks DHCP in Windows Server 2008R2 - HELP!!!

    Posted Feb 08, 2010 04:21 AM
     Thanks Vikram Kumar,


    Yes, i have installed all components of SEP.



    RAFEEQ: can you please make your statement a little more clear? thanks


  • 5.  RE: SEP blocks DHCP in Windows Server 2008R2 - HELP!!!
    Best Answer

    Posted Feb 08, 2010 04:23 AM

    Clients lose network access after installing Symantec Endpoint Protection 11.0


    http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007101417361248
     


  • 6.  RE: SEP blocks DHCP in Windows Server 2008R2 - HELP!!!

    Posted Feb 08, 2010 04:24 AM
    the firewall is blocking the dhcp request, follow the above symantec KB let us know if that works.
     


  • 7.  RE: SEP blocks DHCP in Windows Server 2008R2 - HELP!!!



  • 8.  RE: SEP blocks DHCP in Windows Server 2008R2 - HELP!!!

    Posted Feb 08, 2010 04:27 AM
     Wow... so many replies in just a few minutes! You guys rocks!!

    Thank you very much 

    RafeeqAravindKMVikram Kumar-SAV to SEP