ssms cannot connect to default sql server instance without specifying port number

Posted by Oliver on Stack Overflow See other posts from Stack Overflow or by Oliver
Published on 2010-04-30T15:11:45Z Indexed on 2010/04/30 19:17 UTC
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Filed under:

sql-server-2005

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sql-server

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SSMS

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network

I have multiple SQL Server 2005 instances on a box. From SSMS on my desktop I can connect to that box's named instances with no problem. After some recent network configuration changes, when I want to connect to the default instance from SSMS on my desktop, I have to specify the port number. Before the network changes, I did not have to specify the port number of the default instance.

If I remote to any other box (including the one in question), and use that box's SSMS to connect to that default instance, success. From my desktop, and only from my desktop, I have to specify the port number.

Is it a SQL Server configuration that I've missed? Is it possible something in my PC's configuration is getting in the way? Where would I look, or what could I pass on to the network folks to help them resolve this? Any help is appreciated.

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