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Active flag on IP Addresses flag of TCP/IP Properties in Configuration Manager Expand / Collapse
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Posted Tuesday, October 2, 2012 1:33 PM


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I have two instances on a server. I'm looking in SQL Server Configuration Manager, under the TCP/IP properties for each of the instances. For the IP Address 123.123.123.123 the active flag on Instance A is Yes, the active flag on Instance B is No. Instance B is named, Instance A is default.

Can anyone shed some light on what causes this flag to flip between Yes and No?

Currently I can't connect using that IP address to Instance B, but I can to Instance A.


Kenneth Fisher
I strive to live in a world where a chicken can cross the road without being questioned about its motives.
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Post #1367262
Posted Wednesday, October 3, 2012 7:40 AM


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Is IpAll Dynamic Port set to 0 on the instance? Or is it set to the same port as default instance?
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Posted Wednesday, October 3, 2012 9:56 AM


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The Dynamic Port is set to blank for all IPs including IPAll on both instances.

The default instance is using port 1433 on all IPs. The named is using 4322 on all IPs but one. That one IP is using 1433 but isn't active on the default instance.


Kenneth Fisher
I strive to live in a world where a chicken can cross the road without being questioned about its motives.
--------------------------------------------------------------------------------
For better, quicker answers on T-SQL questions, click on the following...
http://www.sqlservercentral.com/articles/Best+Practices/61537/
For better answers on performance questions, click on the following...
http://www.sqlservercentral.com/articles/SQLServerCentral/66909/

Link to my Blog Post --> www.SQLStudies.com
Post #1367822
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