RE: Server 2003 Network problems since IP address change

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Hello Oliver,

Do you use dynamic updates on the zone properties?

Also run ipconfig /registerdns on the client, this should register there entry in DNS zone, a message should appear similar to "takes about 15 minutes".

Best regards

Meinolf Weber
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Hi Meinolf,

I have removed the reverse lookup and added the new one as you
suggested.

The servers are listed in the forward lookup zones but the clients
aren't.

Yes Gpos are applied to OU's and the users are in the OU's.

Gpresult returns : The user domain\user does not have RSOP data.

Thanks

"Meinolf Weber [MVP-DS]" wrote:

Hello Oliver,

The iprange is not the reason that something does not work as long as
all machines are using the correct subnet. If you say GPO's and logon
script does not run.

Remove the reverse lookupzone on the DNS server for 192.168.0.x
network and create a new one for the 192.168.1.x network.

Are the GPO's linked to the OU where the user/computers are located?

Did you run gpresult /v on a client machine to see if the GPO is
listed?

Are all servers and clients are listed in the Forward lookup zones in
your DNS server?

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
Thanks for your suggestions guys.

I have changed the DNS settings as you have both described. GPO's
and logon scripts still do not run. Of the clients I have tried this
morning they all seem to be able to access the server without
prompting for a username and password for access (even tho the user
is logged onto the domain)...but this seems to happen at strange
intervals so I am not confident that it is a closed issue yet.

Would incorrect dns settings cause the type of issues I am having do
you think? I don't doubt that I had it setup incorrectly...I just
can't understand why clients would be denied access to network
resources based on log on credentials.

The only other solution I can think of is to go back to 192.168.0.x
addressing like we had before to see if that makes a difference. I
am limited to what I can do during the working week due to
disruption though.

I really appreciate your input thank you again.
"Meinolf Weber [MVP-DS]" wrote:
Hello Oliver,

The ipconfig output is from the client?

Well, your DNS configuration coming from your DHCP server has only
to provide domain internal ip addresses 192.168.1.2 for DNS The
external addresses 194.72.9.38 and 62.6.40.162, i assume your ISP's
DNS server are wrong at that place.

On the DNS server properties in the DNS management console under
the DNS server properties you have a FORWARDERS tab, here fill in
the ISP's DNS server.

If the ipconfig from the DC looks similar, change that also.

The client should look like:
ip 192.168.1.x
sm 255.255.255.0
dg 192.168.1.1
dns 192.168.1.2
and the server:
ip 192.168.1.2
sm 255.255.255.0
dg 192.168.1.1
dns 192.168.1.2
Also if you do not use IPv6 i would uncheck the setting under the
NIC
properties.
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,

it is a AD run domain with a single DC. Previousley the old router
provided the DHCP addressing. When we moved offices we had BT come
and install our phone systems with a new router and hence the new
addresses. This router has proved very troublesome so I have
disabled the dhcp server on it and setup the same scope it was
using on the DC.

ipconfig results :

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NVIDIA nForce Networking
Controller #5
Physical Address. . . . . . . . . : 00-1E-8C-2E-0F-2E
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . :
fe80::459b:61f5:8668:2c01%24(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.21(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 22 February 2009 14:33:09
Lease Expires . . . . . . . . . . : 22 March 2009 14:33:07
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.2
DNS Servers . . . . . . . . . . . : 194.72.9.38
62.6.40.162
Primary WINS Server . . . . . . . : 192.168.1.2
NetBIOS over Tcpip. . . . . . . . : Enabled
The DC = 192.168.1.2
The router = 192.168.1.1
As per Meinolf Weber [MVP-DS] suggestion, I have just looked on
the
DC under DNS and under 'Reverse Lookup Zones' there is an entry
for
192.168.0.x Subnet' with a list of pointers to computers and the
old
addresses they used to hold. Could this be something to do with
it?
Thanks for your help guys.
"Newell White" wrote:

"Oliver Maynard" wrote:

Hi, hopefully someone will be able to shed some light on this
problem.

We have just moved offices and broadband providers. With the
move came a change of Ip addresses. we used to run on
192.168.0.1/254 and now we use 192.168.1.1/254.

Since the move I am getting loads of problems with GPO's not
applying to clients anymore and the biggest problem which is the
server refusing access to network drives. I have to manually
un-map the drives and add them again...most the times using a
different username and password as I get the error 'Multiple
connections to a server or shared resource by the same user,
using more than one username, are not allowed' or a similar one
which I cannot now replicate.

Is this related to the IP address change? if so I musy have
missed something somewhere when I was updating the server.

Thanks for you help.

More information is needed before anyone can help you.

Is your network a domain or a workgroup?
If a domain, is it AD-integrated zone? More than one DC?
Does 2003 server provide DHCP for your network? Did you destroy
old
scope and create a new one?
Please post ipconfig/all result for server and typical
workstation.
--
Regards,
Newell White


.

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