http://blogs.technet.com/b/teamdhcp/archive/2009/02/26/new-features-in-dhcp-for-windows-server-2008-r2-windows-7.aspx

This is supposed to “speed up” wireless client access to a network. WINDOWS DHCP FAIL! What this seems to cause is a massive headache for network and system administrators. Windows clients can forever store and cache the information from an associated SSID. Lets say a laptop hasn’t been on your network for 6 months and you just so happens you have a reservation of some sorts on the network or you changed the scope range, the wireless client will send along a DHCP proposal to get the same address it had that first time it was on there. This, as you can see, will cause headaches for you. Microsoft wants you to believe this “saves time” but in reality just how fast is the DORA process for DHCP? Typically so fast most people don’t care. Here is how you turn off Windows DHCP Network Hints:

http://blogs.technet.com/b/teamdhcp/archive/2008/12/19/how-to-configure-dhcp-network-hint.aspx


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