DOCUMENT:Q228480  06-AUG-2002  [winnt]
TITLE   :Error 1722 When Starting Cluster Administrator
PRODUCT :Microsoft Windows NT
PROD/VER::2000,4.0
OPER/SYS:
KEYWORDS:kbenv

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The information in this article applies to:

 - Microsoft Windows NT Server, Enterprise Edition version 4.0 
 - Microsoft Windows 2000 Datacenter Server 
 - Microsoft Windows 2000 Advanced Server 
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SYMPTOMS
========

When you start Cluster Administrator on a computer running Microsoft Cluster
Server, the following error message may be displayed:

   A connection to the cluster at <clustername> could not be opened. This
   may be caused by the Cluster Service on node <clustername> not being
   started. Would you like Cluster Administrator to attempt to start the Cluster
   Service on node <clustername>?

If you click Yes or No, the following error message is displayed:

   An error occurred trying to open the cluster at <clustername>

   The RPC server is unavailable.
   Error ID: 1722 (0000006ba)

After this error message is displayed, it is not possible to connect to the
cluster using <clustername> (where <clustername> is the name of the
cluster server).

CAUSE
=====

This behavior can occur for either of the following reasons:

 - The Cluster service may not be started.

 - The cluster network name resource may be offline.
   If the parameters of a network adapter on the "Public Network" are changed
   (for example, when you reinstall a driver, change an IP address, or change a
   subnet mask), the Cluster service recognizes the network adapter as new. The
   Cluster service generates a new network for the card and labels it "New
   Cluster Network." The old Public Network no longer exists, and
   <clustername> and the cluster IP address that <clustername>
   depends on do not go online.

NOTE: Public Network is the friendly name associated with the interface that
network clients use to connect to the cluster. This name may be different in
actual deployments because it is user-definable during the installation of
Microsoft Cluster Server.

RESOLUTION
==========

To resolve this issue, use the appropriate method.

From one of the nodes of the cluster:

1. Start Cluster Administrator.

2. When you are prompted to connect to a cluster, type a period (.) in the "Open
   Connection to Cluster" dialog box, and then click Open. At this point, the
   cluster group is offline.

3. Click the cluster group, and then click the cluster IP address.

4. On the File menu, click Properties.

5. On the Parameters tab, click New Cluster Network in the "Network to Use" box
   (the Public Network no longer exists), and then click OK.

6. Click the cluster IP address.

7. On the File menu, click Bring Online.

You can now bring the remaining resources online.

If you cannot gain access to one of the nodes of the cluster:

1. Start Cluster Administrator.

2. When you are prompted to connect to a cluster, type the NetBIOS name of one
   of the nodes of the cluster in the Open Connection to Cluster dialog box, and
   then click Open.

3. Click the cluster group, and then click the cluster IP address.

4. On the File menu, click Properties.

5. On the Parameters tab, click New Cluster Network in the "Network to Use" box
   (the Public Network no longer exists), and then click OK.

6. Click the cluster IP address.

7. On the File menu, click Bring Online.

You can now bring the remaining resources online.

NOTE: If you created other IP address resources on the cluster, you may have to
reassign a network to the IP addresses to bring them online.

Additional query words:

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Keywords          : kbenv 
Technology        : kbWinNTsearch kbWinNT400search kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000DataServ kbwin2000DataServSearch kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbwin2000Search kbWinAdvServSearch kbWinDataServSearch
Version           : :2000,4.0
Issue type        : kbprb

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