Re: DHCP released leases go to new computers too soon

Tech-Archive recommends: Fix windows errors by optimizing your registry

Does your computer get a new lease from another dhcp server ?
If you issue an ipconfig /all, the lease period is 15 days ?
They keep getting their leases from the same server. The server is not
restarting. The DHCP server shows 15 day leases and my computer shows 15 days.

"Mathieu CHATEAU" wrote:
Strange, based on this, your workstation should renew their lease:
http://www.microsoft.com/technet/prodtechnol/windows2000serv/reskit/cnet/cncb_dhc_bakb.mspx?mfr=true

----------
Microsoft DHCP supports local storage, allowing clients to store DHCP
information on their own hard disks. Local storage is useful because when
the client system starts, it first attempts to renew the lease of the same
IP address. Local storage also means that a client can be shut down and
restarted using its previously leased address and configuration, even if the
DHCP server is unreachable or offline at the time the client computer is
restarted. Local storage also enables the ability to perform IP
auto-configuration.
----------

Does your computer get a new lease from another dhcp server ?
If you issue an ipconfig /all, the lease period is 15 days ?

Is your DHCP server stopped/start during night ?

--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"rschatz" <rschatz@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1678CC51-6191-4D22-BD63-2304CF98B31F@xxxxxxxxxxxxxxxx
Indeed. I have two DHCP servers that have similar scopes, but not the same
ranges.
There are about 37 scopes configured on each server. They're all just
regular scopes.

"Mathieu CHATEAU" wrote:

Do you have many scope / multi scope / more than one dhcp server ?


--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"rschatz" <rschatz@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:0C0EA849-9176-444C-953E-5DE1A7E9D69E@xxxxxxxxxxxxxxxx
Oui. I can ping it from everywhere. The lease is 15 days. Most of the
expirations in that area of the building are for Sept. 1, for example.

"Mathieu CHATEAU" wrote:

Can you check again the lease duration ?
By default, windows will try to use again the previous leasing if it's
still
valid.
It will ping the default gateway to check for ip validity. Is it
possible
to
ping your gateway ?


--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"rschatz" <rschatz@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:EC41BB63-0961-4D4A-8EB2-0C0E62FFE011@xxxxxxxxxxxxxxxx
In the scope options? No. I don't have it there and don't see
anything
like
that anywhere else either. Thanks for the suggestion. And, no, I
don't
want
to try to use reservations. That's not practical in this case.

"Mathieu CHATEAU" wrote:

Hello,

Do you have the option "002 Microsoft Release DHCP on shutdown" on
your
DHCP
?

If you want to be sure to never change IP, you can make reservation
based
on
mac. So your computers will never change it's IP. Not possible on
large
network anyway...








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