SQL2K集群 绑定在 TCP 端口 1433 上失败

用IP+port不能连接到数据库。查看日志：
server SuperSocket Info:Bind failed on TCP port 1433

NETSTAT -AN 也没有看到侦听1433端口。

CAUSE
Changing the Virtual SQL Server IP address with the Cluster Administrator tool. For a default instance of virtual SQL Server, the following registry value points to a previous IP address: 

HKLM\Software\Microsoft\MSSQLServer\Cluster

For a named instance of virtual SQL Server, the following registry value points to a previous IP address: 

HKLM\Software\Microsoft\Microsoft SQL Server\Instance Name\Cluster\ClusterIpAddr 
    (我的确是在群集管理器里直接更改过SQL群集IP.…………)

RESOLUTION
To resolve the problem, follow the steps in Microsoft Knowledge Base article Q244980 for the correct way to change the Virtual SQL Server IP address. When you get to step 7 in the "More Information" section of the article, select Remove and replace an existing IP Address: 
244980 (http://support.microsoft.com/kb/244980/) HOW TO: Change the Network IP Addresses of SQL Server Virtual Servers 
If you are using SQL Server 2005, follow the steps described in the "How to: Change the IP Address of a SQL Server 2005 Failover Cluster" topic in SQL Server Books Online to resolve the problem.

.
1. Insert the SQL Server 2000 Enterprise Edition CD, and then click SQL Server 2000 Components. 
2. Click Install Database Server. 
3. On the Welcome screen, click Next.
4. Type the name of the virtual server that you want to modify, and then click Next. 
5. Click the Advanced options tab, and then click Next. 
6. Click Maintain a Virtual Server for Failover Clustering, and then click Next. 
7. In the Failover Clustering dialog box, you can: • Add an IP address for additional networks.
• Remove and replace an existing IP address.
• Remove IP addresses that you do not need. 
After you make these changes, click Add, and then click Next.

Note Assign only one IP address for each network and one network for each network adapter. SQL Server requires that each IP address that is assigned to it have its own unique subnet mask. SQL Server does not support multiple IP addresses on the same subnet because this may result in duplicated names on the network. For example, if you have a public network and a private network and you want to assign an additional IP address to your SQL Server virtual server, you must add another network adapter to each node to create a new network. You can then assign the additional IP address to the new network. 
8. Make any changes to the nodes, and then click Next. 
9. Verify the requested user information and password, and then click Next.

To verify that the changes were made, see the SQL Server 2000 IP resource properties in Cluster Administrator for the virtual server.
10. Click Finish.

参考：
FIX：启动时 SQL Server 无法绑定 TCP/IP 端口：
http://support.microsoft.com/?scid=kb;zh-cn;312935&spid=2852&sid=173


Error message when you change the IP address on a SQL Server failover cluster node: "Bind failed"：
http://support.microsoft.com/kb/319578/EN-US/

How to change the network IP addresses of SQL Server virtual servers：
http://support.microsoft.com/kb/244980/