When multiple IP’s are assigned on the Windows Server 2008, the windows will sometime choose the IP address which is closest to the default-gateway of the network as the Primary IP.
This can take a website down on the server as it changes the primary IP.
To rectify the issue, Follow the procedure below:
1- Download the hotfix from the link below: http://support.microsoft.com/kb/2386184/ *** This patch will add "skipassource" capability to "netsh" command. 2- Install the hotfix and reboot 3- Remove all the secondary IP addresses and add them not using the GUI but using the followinf command: Netsh int ipv4 add address "Local Area Connection" 192.168.x.x 255.255.255.0 skipassource=true *** The Skipassource=true causes that IP address never to be used as a primary IP address.