My ISA server blocks the Wireless router


  • I have  the wireless router, The ip adress of Wireless router is for ex: In Isa server 2006 this ip adress have given full access for internet.

    in Wireless Router configured the DHCP as - There are 10 or more  clients connected to Wireless router.

    But sometimes the Isa server blocks the internet connection ( this ip adress  for router. the during of blocking 10 minutes or more. What's problem i don't know. I have try all variants of flood migrations confugiration.No Result!!

    Friday, November 23, 2012 5:54 AM

All replies

  • Hi,

    Thank you for the post.

    Please check the access rule to see if you have configure schedule for a policy rule. And also look into the ISA logging to see which rule block the traffic.


    Nick Gu - MSFT

    Wednesday, November 28, 2012 8:48 AM
  • Description: The number of concurrent TCP connections from the source IP address exceeded the configured limit. As a result, ISA Server will not allow the creation of new TCP connections from this source IP.
    This IP address probably belongs to an attacker or an infected host.

    See product documentation for more info about ISA flood resiliency.

    how can i fix this problem ?

    Friday, November 30, 2012 7:12 AM
  • Add ip to the Flood mitigation exception list on your ISA/TMG box.



    Friday, November 30, 2012 8:52 AM
  • Problem on that so the ip adress have added to  Flood mitigation exception list. No Result!!! The Same Problem
    Monday, December 03, 2012 6:40 AM