DHCP is not giving ip address fast enough

[HMOOC]

Hi all,

I just notice a lag tonight after I moved the network (Small Business Server
2003 network) to another internal ip scheme and my computer is sorta slow
(noticeable) in picking up an IP address from DHCP server. I don't know
where to start to troubleshooting from here. But once it does get an ip
address the network speed is up to par.

Not sure if its DNS issue or DHCP (most likely) but I know something is not
right.

Thanks,
Helen

[Meinolf Weber]

Hello HMOOC,

If you changed the complete address scheme you have to run on any workstation
ipconfig /renew or reboot the machine. Otherwise it will keep the old ip
address for at least the half lease time you configured on the old DHCP scope,
which by default is set to 8 days, so after 4 days the workstation will check
for a new one NOT earlier, except you take the steps above.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm

> Hi all,
>
> I just notice a lag tonight after I moved the network (Small Business
> Server 2003 network) to another internal ip scheme and my computer is
> sorta slow (noticeable) in picking up an IP address from DHCP server.
> I don't know where to start to troubleshooting from here. But once it
> does get an ip address the network speed is up to par.
>
> Not sure if its DNS issue or DHCP (most likely) but I know something
> is not right.
>
> Thanks,
> Helen

[Lanwench [MVP - Exchange]]

HMOOC <HMOOC@discussions.microsoft.com> wrote:
> Hi all,
>
> I just notice a lag tonight after I moved the network (Small Business
> Server 2003 network) to another internal ip scheme and my computer is
> sorta slow (noticeable) in picking up an IP address from DHCP server.
> I don't know where to start to troubleshooting from here. But once
> it does get an ip address the network speed is up to par.
>
> Not sure if its DNS issue or DHCP (most likely) but I know something
> is not right.
>
> Thanks,
> Helen

In addition to Meinholf's wise reply, note that SBS does a lot of things its
own way (it has wizards for most things, and if you're wise you'll use them
even if you know how to do the stuff manually). There's a wizard to change
the IP address, which you should use. Try posting future SBS questions in
microsoft.public.windows.server.sbs.

[Lanwench [MVP - Exchange]]

Lanwench [MVP - Exchange]
<lanwench@heybuddy.donotsendme.unsolicitedmailatyahoo.com> wrote:
> HMOOC <HMOOC@discussions.microsoft.com> wrote:
>> Hi all,
>>
>> I just notice a lag tonight after I moved the network (Small Business
>> Server 2003 network) to another internal ip scheme and my computer is
>> sorta slow (noticeable) in picking up an IP address from DHCP server.
>> I don't know where to start to troubleshooting from here. But once
>> it does get an ip address the network speed is up to par.
>>
>> Not sure if its DNS issue or DHCP (most likely) but I know something
>> is not right.
>>
>> Thanks,
>> Helen
>
> In addition to Meinholf's wise reply, note that SBS does a lot of
> things its own way (it has wizards for most things, and if you're
> wise you'll use them even if you know how to do the stuff manually).
> There's a wizard to change the IP address, which you should use. Try
> posting future SBS questions in microsoft.public.windows.server.sbs.

Sorry - meant tp type "Meinolf". :-)

[Helen Mooc]

Thanks Meinolf.

"Meinolf Weber" <meiweb(nospam)@gmx.de> wrote in message
news:ff16fb6689eaf8ca43418c5a9f2b@msnews.microsoft.com...
> Hello HMOOC,
>
> If you changed the complete address scheme you have to run on any
> workstation ipconfig /renew or reboot the machine. Otherwise it will keep
> the old ip address for at least the half lease time you configured on the
> old DHCP scope, which by default is set to 8 days, so after 4 days the
> workstation will check for a new one NOT earlier, except you take the
> steps above.
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and
> confers no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>> Hi all,
>>
>> I just notice a lag tonight after I moved the network (Small Business
>> Server 2003 network) to another internal ip scheme and my computer is
>> sorta slow (noticeable) in picking up an IP address from DHCP server.
>> I don't know where to start to troubleshooting from here. But once it
>> does get an ip address the network speed is up to par.
>>
>> Not sure if its DNS issue or DHCP (most likely) but I know something
>> is not right.
>>
>> Thanks,
>> Helen
>
>

[saravanansaf]

hi i am saravanan i hav a problem in my dhcp server. i hav changed the ip for server to make it online , and i shutdown the server and i started it back and changed the ip for my network series .after tat it is not providing ip for clients. please help me to solve the problem.mail me @ saravanansaf@gmail.com

[Expertz]

hi i am saravanan i hav a problem in my dhcp server. i hav changed the ip for server to make it online , and i shutdown the server and i started it back and changed the ip for my network series .after tat it is not providing ip for clients. please help me to solve the problem.mail me @ saravanansaf@gmail.com

You need to know that a DHCP server must first be authorized before it will work properly. To authorize a DHCP server, you must have administrative rights in the Active Directory. On a computer that has DHCP installed, click Start, Programs, Administrative Tools, DHCP. On the console tree, click DHCP. On the Action Menu, select Manage Authorized Servers. In the Manage Authorized Servers window, click Authorize. Enter the name or IP address of the DHCP server to be authorized as a DHCP server (the server must already have the DHCP service installed, and must be a member server or domain controller in the domain), and click OK.