Re: 2 Node Network Load Balance - Duplicate NetBIOS Name

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



I've added "A" records in DNS and static entries in WINS for the NLB
cluster name and IP address.

If I browse to \\10.5.5.4\Data I can see the share folders as expected
and have tested it for load balance. It sends me to both backend
server shares as I had expected. It just won't resolve by
\\VirServer\Data. It gives me the same error message.

Any idea how to make it work for File sharing?

Sincerely,
Scott Beckmann
Network Administrator


Rodney R. Fournier [MVP] wrote:
What do you have in WINS? DNS? This is a NetBIOS error. I have not honestly
even tried to do what you are trying. NLB is made for web applications, TS,
Remote Support. Not NetBIOS.

Cheers,

Rodney R. Fournier

MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering Website
http://www.msmvps.com/clustering - Blog
http://www.clusterhelp.com - Cluster Training
ClusterHelp.com is a Microsoft Certified Gold Partner


<dsbeckmann@xxxxxxxxx> wrote in message
news:1155138414.827339.22460@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
If anyone can assist, please assist.

Hello,

I currently have 2 Windows Server 2003 Enterprise Sp1 Servers setup in
a Network Load Balanced cluster. When I try to map a drive or type
\\servername from Run, I get the following message:

You were not connected because a duplicate name exists on the network.
Go to System in Control Panel to change the computer name and try
again.

I have the following setup:

Servers:

ServerA.domain.local 10.5.5.2
ServerB.domain.local 10.5.5.3

Both are configured using NLB Manager with the following:

VirServer.domain.local 10.5.5.4

The following is true:

Both servers have Data replication setup to an identical share on the
same Volume letter.
VirServer has been added to DNS and WINS servers.
I can ping VirServer by name and IP address from a client machine
When I try to browse to it by name \\VirServer, I get the above stated
error message.

I can however browse to \\10.5.5.4 successfully.

Problem is, I need to be able to mape to it by FQDN or NetBIOS.

If anyone can assist me with this issue, I would be grateful.

I have read the boards, but nothing really addresses the problem that I
am having.

Sincerely,
Scott

Network Administrator


.



Relevant Pages

  • Re: NLB Cluster - Ping fails or long time to reply from outside local subnet - SOLVED
    ... I thought that the litmus test was that the router functions fine when no ... NLB is installed, but when it is, things start going screwy. ... to the NLB cluster itself. ... Windows Server 2008 Readiness Team ...
    (microsoft.public.windows.server.clustering)
  • Re: NLB Cluster - Ping fails or long time to reply from outside local subnet - SOLVED
    ... Windows Server 2008 Readiness Team ... I was feeling nervous about our teaming-capable adapter as I read it might be sending out heartbeats, so I disabled it AND configured the cluster on a separate DLink card in multicast mode. ... I am losing the plot with NLB, I have spent a week trying to get it working. ... I thought that the litmus test was that the router functions fine when no NLB is installed, but when it is, things start going screwy. ...
    (microsoft.public.windows.server.clustering)
  • Re: NLB Cluster - Ping fails or long time to reply from outside local subnet - SOLVED
    ... If you run the command 'wlbs query' and the node it is run on says it is converged with all of your nodes in the cluster, that basically says the NLB configuration is correct and the nodes are talking to each other. ... Windows Server 2008 Readiness Team ... Now of course when the permanent MAC is reinstated the router will get confused over the IP/MAC combination of the dedicated cluster NIC. ...
    (microsoft.public.windows.server.clustering)
  • Re: NLB Cluster - Ping fails or long time to reply from outside local subnet - SOLVED
    ... Windows Server 2008 Readiness Team ... NLB is installed, but when it is, things start going screwy. ... The servers are a couple of switches away from the router so I ... 'exterior' to the NLB cluster itself. ...
    (microsoft.public.windows.server.clustering)
  • Re: Windows 2003 Network Load Balancing Problem
    ... NLB config I am testing. ... switch - ONLY virtual IPs) are the multiple NLB virtual cluster addresses ... MVP - Windows Server - Clustering ...
    (microsoft.public.windows.server.clustering)