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We have a number of windows 7 clients on mobile devices. These are connected over 3G (sometimes wifi) to a LAN. Authentication is through active directory. This is consuming bandwidth by constantly keeping in touch with the domain controller.

Is it possible to limit the amount of communication/synchronisation sent by each device to the domain controller? e.g. by placing the 3G laptops in a specific group with a certain group policy?

Other solutions are welcome as well, considering the setup

  • windows 7
  • always 3G
  • sometimes wifi on LAN
  • active directory logins
  • sometimes someone needs to login to a device that he hasn't logged into before
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  • I'm assuming you are running some sort of VPN over the 3G connection to get connectivity between the Win7 devices, correct? What are you using for this?
    – Skawt
    Feb 18, 2012 at 22:02
  • "sometimes someone needs to login to a device that he hasn't logged into before" I hope you don't use roaming profiles!
    – Tom
    Feb 20, 2012 at 10:16
  • @Tom I don't know, it's not my AD. I just want to supply my customer with a solution. I think that specific scenario is only supported when the user has access to wifi
    – stombeur
    Feb 20, 2012 at 19:34
  • @Skawt a private access point name limited to specific SIM cards and routed over a leased line
    – stombeur
    Feb 20, 2012 at 19:35

1 Answer 1

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Yes there is. Read the article Specifying Group Policy for Slow Link Detection. You find the settings in the policies here:

Computer Configuration\Administrative Templates\System\Group Policy\Group Policy slow link detection policy

You have to define what is considered a slow connection in kbps. The "Windows-traffic" will automaticly reduced.

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