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DHCP Lease expires every 10 minutes and therefore VPN gets disconnected

Posted on 2004-04-13
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Last Modified: 2009-07-29
We are running VPN and geting disconnects every 10 minutes. IPCONFIG /ALL reveals that the DHCP lease is being issued for 10 minutes only. I cannot find where the DHCP lease durations are kept. I am using Windows 2000 Server. Many thanks. The IP address that I am refering to is the Static address, not the VPN client address. That is to say, that address that the router gives out to the Server, behind the firewall. The router does not have any settings that issue the address for a period of time.
Thanks.
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Question by:the_enigma7
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If I understand you correct, you have an IP address that has been issued from a routyer, to the server. This is most probably a router side config ro on the server.

You mention that the router does not have any config for tis, so lets agree that this may be the case.

One place to look would be the Registry on the server. This is not a good place to play, so be careful etc...

If you go to the System/CurrentControlSet/Services in the tree.. under HKEY_local_machine

Find the network adapter (probbaly a series of {5e3457-154B-817198} or something similar...., under paramters, you will find tcpip. The settings that appear here cannot all be changed, but I am sure that the Lease seting can be.

The acid test is that the setting will refelct minutes, and if this is the right place, should be set to 600 (this being 60 x 10). If this is the case we can change this etting to 7200 (two hours) and then save and exit.

I have not been required to do this on a Windoiws 2K server, but I think it is the answer.

You may need a re boot.

Thanks
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