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Doing some major network changes, would be nice to do some sort of bulk "release / renew" via Group Policy.

Is there a way to do this

Script perhaps?

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If you know you are making changes ahead of time, why wouldn't you simply adjust your lease renewal times to be really short? –  Zoredache Nov 23 '11 at 9:19

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up vote 2 down vote accepted

As Zoredache mentioned in the comments, setting the lease duration to a shorter interval is probably the simplest method. That being said, you might be able to script something up that uses psexec against either a list of known machines or something generated out of a subnet scanner to run the commands. Test it on a few systems first :-)

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Everything worked out great! –  rkl Dec 6 '11 at 12:39

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