It says specifically in that KB that the issue referred to by that KB doesn't occur in Win7! :-P
Note: This issue does not occur in Windows 7. The registry key DhcpConnEnableBcastFlagToggle is set to 1 by default. -----Original Message----- From: Angus Scott-Fleming [mailto:angu...@geoapps.com] Sent: Friday, January 15, 2010 1:38 AM To: NT System Admin Issues Subject: Re: Windows 7 and DHCP puzzler On 14 Jan 2010 at 19:19, Eisenberg, Wayne wrote: > > Has anyone noticed any problems with Windows 7 getting an IP address > from DHCP? In our pilot testing, we are noticing that a significant > portion > (>30%) of our users are not successfully getting an IP address from > the local DHCP server. It happens with wired and/or wireless, across > make and model, different antivirus programs. It can happen if the > DHCP server is on the same subnet and also if it is on a different > subnet (ip helper address configured in the router). No firewalls > turned on. Everything was fine for a while, and then some laptop users > started having problems getting an address from their home router. > Some folks can get an address at home, but have trouble getting it at > the office. If you give them a static IP, they can work. That is > obviously not a viable solution. We need DHCP to work no matter where > they are - just like it works for XP. :) BTW, none of our XP users > have any problems at all. This is strictly a Win7 issue. We've tried removing > some MS patches among other things, but nothing fixes it across the board. > Any ideas? > > Points and ice cream will be awarded to anyone who can come up with an > answer. :) What is your DHCP server? If it's a non-Microsoft router, then you need to disable the DHCP Broadcast flag in Win7, as per this KB: Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers http://support.microsoft.com/kb/928233 Low-carb ice-cream, please ;-) -- Angus Scott-Fleming GeoApps, Tucson, Arizona 1-520-290-5038 +-----------------------------------+ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
