windows 2003 network problem/ping

Hello,
I am having problems in a network testenvrionment. It's a network and
ping problem.

The network has four identical windows 2003 servers all running Active
Directory and DNS.
The servers have two networkcards.
They are all connected to a CISCO switch and the swtich is connected
to a netgear firewall router.

The problem is that two of the machines cannot ping the other servers,
the switch or the router.
The other two machines works fine.

It doesn't matter which network card I use or which ports on the
switch or which ethernet cables.

The all have static IPs.

router :192.168.1.1
switch: 192.168.1.254
Server1: 192.168.1.9
Server2: 192.168.1.10
Server3: 192.168.1.20
Server4: 192.168.1.30

The gateway is set to 192.168.1.1 for all.
The DNS is set to its own IP and 192.168.1.1

The router can ping itself, the switch, server1 and server2
Server1 can ping itself, the switch, the router and server2
Server2 can ping itself, the switch, the router and server1
Server3 can only ping itself
Server4 can only ping itself.

For server3 and 4 it doesnt matter which network card I use.

Any tips on how to correct this?
What can be the problem?

/ m

1) Only one card. Disable the other and reboot.
2) Either one or two DNS servers, but both DC's. Not sure if your reference
to a DNS as the router IP was a typo,
Anthony,
http://www.airdesk.co.uk


"Mike" <(E-Mail Removed)> wrote in message
news:b78ee62e-e581-4bd3-9c11-(E-Mail Removed)...
> Hello,
> I am having problems in a network testenvrionment. It's a network and
> ping problem.
>
> The network has four identical windows 2003 servers all running Active
> Directory and DNS.
> The servers have two networkcards.
> They are all connected to a CISCO switch and the swtich is connected
> to a netgear firewall router.
>
> The problem is that two of the machines cannot ping the other servers,
> the switch or the router.
> The other two machines works fine.
>
> It doesn't matter which network card I use or which ports on the
> switch or which ethernet cables.
>
> The all have static IPs.
>
> router :192.168.1.1
> switch: 192.168.1.254
> Server1: 192.168.1.9
> Server2: 192.168.1.10
> Server3: 192.168.1.20
> Server4: 192.168.1.30
>
> The gateway is set to 192.168.1.1 for all.
> The DNS is set to its own IP and 192.168.1.1
>
> The router can ping itself, the switch, server1 and server2
> Server1 can ping itself, the switch, the router and server2
> Server2 can ping itself, the switch, the router and server1
> Server3 can only ping itself
> Server4 can only ping itself.
>
> For server3 and 4 it doesnt matter which network card I use.
>
> Any tips on how to correct this?
> What can be the problem?
>
> / m
>
>
>
>
>
>

- you can't ping the IP adresses or the DNS name?
- subnet maks are the same for all servers?
- do they all use the same DNS server?

"Mike" <(E-Mail Removed)> schreef in bericht
news:b78ee62e-e581-4bd3-9c11-(E-Mail Removed)...
> Hello,
> I am having problems in a network testenvrionment. It's a network and
> ping problem.
>
> The network has four identical windows 2003 servers all running Active
> Directory and DNS.
> The servers have two networkcards.
> They are all connected to a CISCO switch and the swtich is connected
> to a netgear firewall router.
>
> The problem is that two of the machines cannot ping the other servers,
> the switch or the router.
> The other two machines works fine.
>
> It doesn't matter which network card I use or which ports on the
> switch or which ethernet cables.
>
> The all have static IPs.
>
> router :192.168.1.1
> switch: 192.168.1.254
> Server1: 192.168.1.9
> Server2: 192.168.1.10
> Server3: 192.168.1.20
> Server4: 192.168.1.30
>
> The gateway is set to 192.168.1.1 for all.
> The DNS is set to its own IP and 192.168.1.1
>
> The router can ping itself, the switch, server1 and server2
> Server1 can ping itself, the switch, the router and server2
> Server2 can ping itself, the switch, the router and server1
> Server3 can only ping itself
> Server4 can only ping itself.
>
> For server3 and 4 it doesnt matter which network card I use.
>
> Any tips on how to correct this?
> What can be the problem?
>
> / m
>
>
>
>
>
>

- do they all use the same Primary DNS server?

"Remco" <-> schreef in bericht
news:ae5e5$4804cfea$541f1cbd$(E-Mail Removed) .home.nl...
>- you can't ping the IP adresses or the DNS name?
> - subnet maks are the same for all servers?
> - do they all use the same DNS server?
>
> "Mike" <(E-Mail Removed)> schreef in bericht
> news:b78ee62e-e581-4bd3-9c11-(E-Mail Removed)...
>> Hello,
>> I am having problems in a network testenvrionment. It's a network and
>> ping problem.
>>
>> The network has four identical windows 2003 servers all running Active
>> Directory and DNS.
>> The servers have two networkcards.
>> They are all connected to a CISCO switch and the swtich is connected
>> to a netgear firewall router.
>>
>> The problem is that two of the machines cannot ping the other servers,
>> the switch or the router.
>> The other two machines works fine.
>>
>> It doesn't matter which network card I use or which ports on the
>> switch or which ethernet cables.
>>
>> The all have static IPs.
>>
>> router :192.168.1.1
>> switch: 192.168.1.254
>> Server1: 192.168.1.9
>> Server2: 192.168.1.10
>> Server3: 192.168.1.20
>> Server4: 192.168.1.30
>>
>> The gateway is set to 192.168.1.1 for all.
>> The DNS is set to its own IP and 192.168.1.1
>>
>> The router can ping itself, the switch, server1 and server2
>> Server1 can ping itself, the switch, the router and server2
>> Server2 can ping itself, the switch, the router and server1
>> Server3 can only ping itself
>> Server4 can only ping itself.
>>
>> For server3 and 4 it doesnt matter which network card I use.
>>
>> Any tips on how to correct this?
>> What can be the problem?
>>
>> / m
>>
>>
>>
>>
>>
>>
>
>

Hi,
firewall on any server ?
Vlan on the switch ?
jk

I have tried to diasbled one of the cards, but that doesn't make a
different.
I will try to set them only to use their own DNS applications

On 15 Apr, 14:03, "Anthony [MVP]" <anth...@no-reply.com> wrote:
> 1) Only one card. Disable the other and reboot.
> 2) Either one or two DNS servers, but both DC's. Not sure if your reference
> to a DNS as the router IP was a typo,
> Anthony,http://www.airdesk.co.uk
>
> "Mike" <mickebj...@yahoo.se> wrote in message
>
> news:b78ee62e-e581-4bd3-9c11-(E-Mail Removed)...
>
> > Hello,
> > I am having problems in a network testenvrionment. It's a network and
> > ping problem.
>
> > The network has four identical windows 2003 servers all running Active
> > Directory and DNS.
> > The servers have two networkcards.
> > They are all connected to a CISCO switch and the swtich is connected
> > to a netgear firewall router.
>
> > The problem is that two of the machines cannot ping the other servers,
> > the switch or the router.
> > The other two machines works fine.
>
> > It doesn't matter which network card I use or which ports on the
> > switch or which ethernet cables.
>
> > The all have static IPs.
>
> > router :192.168.1.1
> > switch: 192.168.1.254
> > Server1: 192.168.1.9
> > Server2: 192.168.1.10
> > Server3: 192.168.1.20
> > Server4: 192.168.1.30
>
> > The gateway is set to 192.168.1.1 for all.
> > The DNS is set to its own IP and 192.168.1.1
>
> > The router can ping itself, the switch, server1 and server2
> > Server1 can ping itself, the switch, the router and server2
> > Server2 can ping itself, the switch, the router and server1
> > Server3 can only ping itself
> > Server4 can only ping itself.
>
> > For server3 and 4 it doesnt matter which network card I use.
>
> > Any tips on how to correct this?
> > What can be the problem?
>
> > / m

On 15 Apr, 17:55, "Remco" <-> wrote:
> - you can't ping the IP adresses or the DNS name?
Correct.
Two of the servers can only ping themself.
They can ping their own IP and their own name.

> - subnet maks are the same for all servers?
yes, 255.255.255.0

> - do they all use the same DNS server?

No, they are all set to use their own DNS and to use the router.

>
> "Mike" <mickebj...@yahoo.se> schreef in berichtnews:b78ee62e-e581-4bd3-9c11-(E-Mail Removed)...
>
> > Hello,
> > I am having problems in a network testenvrionment. It's a network and
> > ping problem.
>
> > The network has four identical windows 2003 servers all running Active
> > Directory and DNS.
> > The servers have two networkcards.
> > They are all connected to a CISCO switch and the swtich is connected
> > to a netgear firewall router.
>
> > The problem is that two of the machines cannot ping the other servers,
> > the switch or the router.
> > The other two machines works fine.
>
> > It doesn't matter which network card I use or which ports on the
> > switch or which ethernet cables.
>
> > The all have static IPs.
>
> > router :192.168.1.1
> > switch: 192.168.1.254
> > Server1: 192.168.1.9
> > Server2: 192.168.1.10
> > Server3: 192.168.1.20
> > Server4: 192.168.1.30
>
> > The gateway is set to 192.168.1.1 for all.
> > The DNS is set to its own IP and 192.168.1.1
>
> > The router can ping itself, the switch, server1 and server2
> > Server1 can ping itself, the switch, the router and server2
> > Server2 can ping itself, the switch, the router and server1
> > Server3 can only ping itself
> > Server4 can only ping itself.
>
> > For server3 and 4 it doesnt matter which network card I use.
>
> > Any tips on how to correct this?
> > What can be the problem?
>
> > / m

I haveswiched off the firewall on all servers.

i recently made a factory restore on the switch but that makes no
changes. There are no vlans active

On 16 Apr, 14:59, "Juergen Kluth" <jkl...@t-onlinr.de> wrote:
> Hi,
> firewall on any server ?
> Vlan on the switch ?
> jk

Hi,
Yes, I meant both changes, not one or the other. You can't use the router as
a DNS server for the DC's, it must be only the DC's themselves.
Anthony,
http://www.airdesk.co.uk


"Mike" <(E-Mail Removed)> wrote in message
news:05d09bc8-77af-4320-aa93-(E-Mail Removed)...
>I have tried to diasbled one of the cards, but that doesn't make a
> different.
> I will try to set them only to use their own DNS applications
>
> On 15 Apr, 14:03, "Anthony [MVP]" <anth...@no-reply.com> wrote:
>> 1) Only one card. Disable the other and reboot.
>> 2) Either one or two DNS servers, but both DC's. Not sure if your
>> reference
>> to a DNS as the router IP was a typo,
>> Anthony, http://www.airdesk.co.uk
>>
>> "Mike" <mickebj...@yahoo.se> wrote in message
>>
>> news:b78ee62e-e581-4bd3-9c11-(E-Mail Removed)...
>>
>> > Hello,
>> > I am having problems in a network testenvrionment. It's a network and
>> > ping problem.
>>
>> > The network has four identical windows 2003 servers all running Active
>> > Directory and DNS.
>> > The servers have two networkcards.
>> > They are all connected to a CISCO switch and the swtich is connected
>> > to a netgear firewall router.
>>
>> > The problem is that two of the machines cannot ping the other servers,
>> > the switch or the router.
>> > The other two machines works fine.
>>
>> > It doesn't matter which network card I use or which ports on the
>> > switch or which ethernet cables.
>>
>> > The all have static IPs.
>>
>> > router :192.168.1.1
>> > switch: 192.168.1.254
>> > Server1: 192.168.1.9
>> > Server2: 192.168.1.10
>> > Server3: 192.168.1.20
>> > Server4: 192.168.1.30
>>
>> > The gateway is set to 192.168.1.1 for all.
>> > The DNS is set to its own IP and 192.168.1.1
>>
>> > The router can ping itself, the switch, server1 and server2
>> > Server1 can ping itself, the switch, the router and server2
>> > Server2 can ping itself, the switch, the router and server1
>> > Server3 can only ping itself
>> > Server4 can only ping itself.
>>
>> > For server3 and 4 it doesnt matter which network card I use.
>>
>> > Any tips on how to correct this?
>> > What can be the problem?
>>
>> > / m
>
>

why dns is set to gataway address?

"Mike" <(E-Mail Removed)> ha scritto nel messaggio
news:b78ee62e-e581-4bd3-9c11-(E-Mail Removed)...
> Hello,
> I am having problems in a network testenvrionment. It's a network and
> ping problem.
>
> The network has four identical windows 2003 servers all running Active
> Directory and DNS.
> The servers have two networkcards.
> They are all connected to a CISCO switch and the swtich is connected
> to a netgear firewall router.
>
> The problem is that two of the machines cannot ping the other servers,
> the switch or the router.
> The other two machines works fine.
>
> It doesn't matter which network card I use or which ports on the
> switch or which ethernet cables.
>
> The all have static IPs.
>
> router :192.168.1.1
> switch: 192.168.1.254
> Server1: 192.168.1.9
> Server2: 192.168.1.10
> Server3: 192.168.1.20
> Server4: 192.168.1.30
>
> The gateway is set to 192.168.1.1 for all.
> The DNS is set to its own IP and 192.168.1.1
>
> The router can ping itself, the switch, server1 and server2
> Server1 can ping itself, the switch, the router and server2
> Server2 can ping itself, the switch, the router and server1
> Server3 can only ping itself
> Server4 can only ping itself.
>
> For server3 and 4 it doesnt matter which network card I use.
>
> Any tips on how to correct this?
> What can be the problem?
>
> / m
>
>
>
>
>
>