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From: Gis Bun on 7 May 2008 16:52
Hi. We're running Server 2003 with a DHCP server. The DHCP side seems
to be working fine. We have various reserved address [all below .100]
and 20 IPs [.181 to .200] reserved for those that don't have a
reservation.

When we took a PC [Win XP SP2] off static address and tried to renew,
it could not pick up a reserved IP address [even though the right MAC
was used]. Even after removing the reservation, it couldn't pick up
one of the 20 un-reserved addresses.

It's a "flat" network with 1 segment and 1 router. Other clients are
fine.

The "repair" feature in win XP didn't help.

Ideas?
Some type of IP flushing?

Thanks


From: Maincat on 8 May 2008 14:00

"Gis Bun" <GisBun(a)discussions.microsoft.com> wrote in message
news:C00A48E6-2821-4D4B-BE45-2A11B9C2969D(a)microsoft.com...
> Hi. We're running Server 2003 with a DHCP server. The DHCP side seems
> to be working fine. We have various reserved address [all below .100]
> and 20 IPs [.181 to .200] reserved for those that don't have a
> reservation.
>
> When we took a PC [Win XP SP2] off static address and tried to renew,
> it could not pick up a reserved IP address [even though the right MAC
> was used]. Even after removing the reservation, it couldn't pick up
> one of the 20 un-reserved addresses.
>
> It's a "flat" network with 1 segment and 1 router. Other clients are
> fine.
>
> The "repair" feature in win XP didn't help.
>
> Ideas?
> Some type of IP flushing?
>
> Thanks
>
Is the DHCP service running on the client?


From: smlunatick on 8 May 2008 14:58
On May 7, 4:52 pm, Gis Bun <Gis...(a)discussions.microsoft.com> wrote:
> Hi. We're running Server 2003 with a DHCP server. The DHCP side seems
> to be working fine. We have various reserved address [all below .100]
> and 20 IPs [.181 to .200] reserved for those that don't have a
> reservation.
>
> When we took a PC [Win XP SP2] off static address and tried to renew,
> it could not pick up a reserved IP address [even though the right MAC
> was used]. Even after removing the reservation, it couldn't pick up
> one of the 20 un-reserved addresses.
>
> It's a "flat" network with 1 segment and 1 router. Other clients are
> fine.
>
> The "repair" feature in win XP didn't help.
>
> Ideas?
> Some type of IP flushing?
>
> Thanks

Check with possible firewall / anti-virus settings on the XP PCs.
From: Gis Bun on 8 May 2008 15:53


"Maincat" wrote:

>
> "Gis Bun" <GisBun(a)discussions.microsoft.com> wrote in message
> news:C00A48E6-2821-4D4B-BE45-2A11B9C2969D(a)microsoft.com...
> > Hi. We're running Server 2003 with a DHCP server. The DHCP side seems
> > to be working fine. We have various reserved address [all below .100]
> > and 20 IPs [.181 to .200] reserved for those that don't have a
> > reservation.
> >
> > When we took a PC [Win XP SP2] off static address and tried to renew,
> > it could not pick up a reserved IP address [even though the right MAC
> > was used]. Even after removing the reservation, it couldn't pick up
> > one of the 20 un-reserved addresses.
> >
> > It's a "flat" network with 1 segment and 1 router. Other clients are
> > fine.
> >
> > The "repair" feature in win XP didn't help.
> >
> > Ideas?
> > Some type of IP flushing?
> >
> > Thanks
> >
> Is the DHCP service running on the client?

Yup.


From: Gis Bun on 8 May 2008 15:54


"smlunatick" wrote:

> On May 7, 4:52 pm, Gis Bun <Gis...(a)discussions.microsoft.com> wrote:
> > Hi. We're running Server 2003 with a DHCP server. The DHCP side seems
> > to be working fine. We have various reserved address [all below .100]
> > and 20 IPs [.181 to .200] reserved for those that don't have a
> > reservation.
> >
> > When we took a PC [Win XP SP2] off static address and tried to renew,
> > it could not pick up a reserved IP address [even though the right MAC
> > was used]. Even after removing the reservation, it couldn't pick up
> > one of the 20 un-reserved addresses.
> >
> > It's a "flat" network with 1 segment and 1 router. Other clients are
> > fine.
> >
> > The "repair" feature in win XP didn't help.
> >
> > Ideas?
> > Some type of IP flushing?
> >
> > Thanks
>
> Check with possible firewall / anti-virus settings on the XP PCs.

Most firewalls automatically allow the DHCP to go in and out. Looked fine as
it is....

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